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core: improve snapshot journal recovery (#21594) 

* core/state/snapshot: introduce snapshot journal version

* core: update the disk layer in an atomic way

* core: persist the disk layer generator periodically

* core/state/snapshot: improve logging

* core/state/snapshot: forcibly ensure the legacy snapshot is matched

* core/state/snapshot: add debug logs

* core, tests: fix tests and special recovery case

* core: polish

* core: add more blockchain tests for snapshot recovery

* core/state: fix comment

* core: add recovery flag for snapshot

* core: add restart after start-after-crash tests

* core/rawdb: fix imports

* core: fix tests

* core: remove log

* core/state/snapshot: fix snapshot

* core: avoid callbacks in SetHead

* core: fix setHead cornercase where the threshold root has state

* core: small docs for the test cases

Co-authored-by: Péter Szilágyi <peterke@gmail.com>
This commit is contained in:
gary rong 2020-10-30 03:01:58 +08:00 committed by GitHub
parent 43c278cdf9
commit b63e3c37a6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
11 changed files with 1792 additions and 159 deletions
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72
core/blockchain.go
View File

@ -210,6 +210,7 @@ type BlockChain struct {
badBlocks *lru.Cache // Bad block cache
shouldPreserve func(*types.Block) bool // Function used to determine whether should preserve the given block.
terminateInsert func(common.Hash, uint64) bool // Testing hook used to terminate ancient receipt chain insertion.
writeLegacyJournal bool // Testing flag used to flush the snapshot journal in legacy format.
}
// NewBlockChain returns a fully initialised block chain using information
@ -281,11 +282,31 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
// Make sure the state associated with the block is available
head := bc.CurrentBlock()
if _, err := state.New(head.Root(), bc.stateCache, bc.snaps); err != nil {
// Head state is missing, before the state recovery, find out the
// disk layer point of snapshot(if it's enabled). Make sure the
// rewound point is lower than disk layer.
var diskRoot common.Hash
if bc.cacheConfig.SnapshotLimit > 0 {
diskRoot = rawdb.ReadSnapshotRoot(bc.db)
}
if diskRoot != (common.Hash{}) {
log.Warn("Head state missing, repairing", "number", head.Number(), "hash", head.Hash(), "snaproot", diskRoot)
snapDisk, err := bc.SetHeadBeyondRoot(head.NumberU64(), diskRoot)
if err != nil {
return nil, err
}
// Chain rewound, persist old snapshot number to indicate recovery procedure
if snapDisk != 0 {
rawdb.WriteSnapshotRecoveryNumber(bc.db, snapDisk)
}
} else {
log.Warn("Head state missing, repairing", "number", head.Number(), "hash", head.Hash())
if err := bc.SetHead(head.NumberU64()); err != nil {
return nil, err
}
}
}
// Ensure that a previous crash in SetHead doesn't leave extra ancients
if frozen, err := bc.db.Ancients(); err == nil && frozen > 0 {
var (
@ -339,7 +360,18 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
}
// Load any existing snapshot, regenerating it if loading failed
if bc.cacheConfig.SnapshotLimit > 0 {
bc.snaps = snapshot.New(bc.db, bc.stateCache.TrieDB(), bc.cacheConfig.SnapshotLimit, bc.CurrentBlock().Root(), !bc.cacheConfig.SnapshotWait)
// If the chain was rewound past the snapshot persistent layer (causing
// a recovery block number to be persisted to disk), check if we're still
// in recovery mode and in that case, don't invalidate the snapshot on a
// head mismatch.
var recover bool
head := bc.CurrentBlock()
if layer := rawdb.ReadSnapshotRecoveryNumber(bc.db); layer != nil && *layer > head.NumberU64() {
log.Warn("Enabling snapshot recovery", "chainhead", head.NumberU64(), "diskbase", *layer)
recover = true
}
bc.snaps = snapshot.New(bc.db, bc.stateCache.TrieDB(), bc.cacheConfig.SnapshotLimit, head.Root(), !bc.cacheConfig.SnapshotWait, recover)
}
// Take ownership of this particular state
go bc.update()
@ -444,9 +476,25 @@ func (bc *BlockChain) loadLastState() error {
// was fast synced or full synced and in which state, the method will try to
// delete minimal data from disk whilst retaining chain consistency.
func (bc *BlockChain) SetHead(head uint64) error {
_, err := bc.SetHeadBeyondRoot(head, common.Hash{})
return err
}
// SetHeadBeyondRoot rewinds the local chain to a new head with the extra condition
// that the rewind must pass the specified state root. This method is meant to be
// used when rewiding with snapshots enabled to ensure that we go back further than
// persistent disk layer. Depending on whether the node was fast synced or full, and
// in which state, the method will try to delete minimal data from disk whilst
// retaining chain consistency.
//
// The method returns the block number where the requested root cap was found.
func (bc *BlockChain) SetHeadBeyondRoot(head uint64, root common.Hash) (uint64, error) {
bc.chainmu.Lock()
defer bc.chainmu.Unlock()
// Track the block number of the requested root hash
var rootNumber uint64 // (no root == always 0)
// Retrieve the last pivot block to short circuit rollbacks beyond it and the
// current freezer limit to start nuking id underflown
pivot := rawdb.ReadLastPivotNumber(bc.db)
@ -462,8 +510,16 @@ func (bc *BlockChain) SetHead(head uint64) error {
log.Error("Gap in the chain, rewinding to genesis", "number", header.Number, "hash", header.Hash())
newHeadBlock = bc.genesisBlock
} else {
// Block exists, keep rewinding until we find one with state
// Block exists, keep rewinding until we find one with state,
// keeping rewinding until we exceed the optional threshold
// root hash
beyondRoot := (root == common.Hash{}) // Flag whether we're beyond the requested root (no root, always true)
for {
// If a root threshold was requested but not yet crossed, check
if root != (common.Hash{}) && !beyondRoot && newHeadBlock.Root() == root {
beyondRoot, rootNumber = true, newHeadBlock.NumberU64()
}
if _, err := state.New(newHeadBlock.Root(), bc.stateCache, bc.snaps); err != nil {
log.Trace("Block state missing, rewinding further", "number", newHeadBlock.NumberU64(), "hash", newHeadBlock.Hash())
if pivot == nil || newHeadBlock.NumberU64() > *pivot {
@ -474,9 +530,13 @@ func (bc *BlockChain) SetHead(head uint64) error {
newHeadBlock = bc.genesisBlock
}
}
if beyondRoot || newHeadBlock.NumberU64() == 0 {
log.Debug("Rewound to block with state", "number", newHeadBlock.NumberU64(), "hash", newHeadBlock.Hash())
break
}
log.Debug("Skipping block with threshold state", "number", newHeadBlock.NumberU64(), "hash", newHeadBlock.Hash(), "root", newHeadBlock.Root())
newHeadBlock = bc.GetBlock(newHeadBlock.ParentHash(), newHeadBlock.NumberU64()-1) // Keep rewinding
}
}
rawdb.WriteHeadBlockHash(db, newHeadBlock.Hash())
@ -555,7 +615,7 @@ func (bc *BlockChain) SetHead(head uint64) error {
bc.txLookupCache.Purge()
bc.futureBlocks.Purge()
return bc.loadLastState()
return rootNumber, bc.loadLastState()
}
// FastSyncCommitHead sets the current head block to the one defined by the hash
@ -940,10 +1000,16 @@ func (bc *BlockChain) Stop() {
var snapBase common.Hash
if bc.snaps != nil {
var err error
if bc.writeLegacyJournal {
if snapBase, err = bc.snaps.LegacyJournal(bc.CurrentBlock().Root()); err != nil {
log.Error("Failed to journal state snapshot", "err", err)
}
} else {
if snapBase, err = bc.snaps.Journal(bc.CurrentBlock().Root()); err != nil {
log.Error("Failed to journal state snapshot", "err", err)
}
}
}
// Ensure the state of a recent block is also stored to disk before exiting.
// We're writing three different states to catch different restart scenarios:
// - HEAD: So we don't need to reprocess any blocks in the general case

316
core/blockchain_repair_test.go
View File

@ -25,6 +25,7 @@ import (
"math/big"
"os"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/ethash"
@ -38,7 +39,10 @@ import (
// committed to disk and then the process crashed. In this case we expect the full
// chain to be rolled back to the committed block, but the chain data itself left
// in the database for replaying.
func TestShortRepair(t *testing.T) {
func TestShortRepair(t *testing.T) { testShortRepair(t, false) }
func TestShortRepairWithSnapshots(t *testing.T) { testShortRepair(t, true) }
func testShortRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
@ -68,14 +72,17 @@ func TestShortRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a short canonical chain where the fast sync pivot point was
// already committed, after which the process crashed. In this case we expect the full
// chain to be rolled back to the committed block, but the chain data itself left in
// the database for replaying.
func TestShortFastSyncedRepair(t *testing.T) {
func TestShortFastSyncedRepair(t *testing.T) { testShortFastSyncedRepair(t, false) }
func TestShortFastSyncedRepairWithSnapshots(t *testing.T) { testShortFastSyncedRepair(t, true) }
func testShortFastSyncedRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
@ -105,14 +112,17 @@ func TestShortFastSyncedRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a short canonical chain where the fast sync pivot point was
// not yet committed, but the process crashed. In this case we expect the chain to
// detect that it was fast syncing and not delete anything, since we can just pick
// up directly where we left off.
func TestShortFastSyncingRepair(t *testing.T) {
func TestShortFastSyncingRepair(t *testing.T) { testShortFastSyncingRepair(t, false) }
func TestShortFastSyncingRepairWithSnapshots(t *testing.T) { testShortFastSyncingRepair(t, true) }
func testShortFastSyncingRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
@ -142,7 +152,7 @@ func TestShortFastSyncingRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a recovery for a short canonical chain and a shorter side chain, where a
@ -150,7 +160,10 @@ func TestShortFastSyncingRepair(t *testing.T) {
// test scenario the side chain is below the committed block. In this case we expect
// the canonical chain to be rolled back to the committed block, but the chain data
// itself left in the database for replaying.
func TestShortOldForkedRepair(t *testing.T) {
func TestShortOldForkedRepair(t *testing.T) { testShortOldForkedRepair(t, false) }
func TestShortOldForkedRepairWithSnapshots(t *testing.T) { testShortOldForkedRepair(t, true) }
func testShortOldForkedRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3
@ -182,7 +195,7 @@ func TestShortOldForkedRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a short canonical chain and a shorter side chain, where
@ -191,6 +204,13 @@ func TestShortOldForkedRepair(t *testing.T) {
// this case we expect the canonical chain to be rolled back to the committed block,
// but the chain data itself left in the database for replaying.
func TestShortOldForkedFastSyncedRepair(t *testing.T) {
testShortOldForkedFastSyncedRepair(t, false)
}
func TestShortOldForkedFastSyncedRepairWithSnapshots(t *testing.T) {
testShortOldForkedFastSyncedRepair(t, true)
}
func testShortOldForkedFastSyncedRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3
@ -222,7 +242,7 @@ func TestShortOldForkedFastSyncedRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a short canonical chain and a shorter side chain, where
@ -231,6 +251,13 @@ func TestShortOldForkedFastSyncedRepair(t *testing.T) {
// the chain to detect that it was fast syncing and not delete anything, since we
// can just pick up directly where we left off.
func TestShortOldForkedFastSyncingRepair(t *testing.T) {
testShortOldForkedFastSyncingRepair(t, false)
}
func TestShortOldForkedFastSyncingRepairWithSnapshots(t *testing.T) {
testShortOldForkedFastSyncingRepair(t, true)
}
func testShortOldForkedFastSyncingRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3
@ -262,7 +289,7 @@ func TestShortOldForkedFastSyncingRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a recovery for a short canonical chain and a shorter side chain, where a
@ -270,7 +297,10 @@ func TestShortOldForkedFastSyncingRepair(t *testing.T) {
// test scenario the side chain reaches above the committed block. In this case we
// expect the canonical chain to be rolled back to the committed block, but the
// chain data itself left in the database for replaying.
func TestShortNewlyForkedRepair(t *testing.T) {
func TestShortNewlyForkedRepair(t *testing.T) { testShortNewlyForkedRepair(t, false) }
func TestShortNewlyForkedRepairWithSnapshots(t *testing.T) { testShortNewlyForkedRepair(t, true) }
func testShortNewlyForkedRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3->S4->S5->S6
@ -302,7 +332,7 @@ func TestShortNewlyForkedRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a short canonical chain and a shorter side chain, where
@ -311,6 +341,13 @@ func TestShortNewlyForkedRepair(t *testing.T) {
// In this case we expect the canonical chain to be rolled back to the committed
// block, but the chain data itself left in the database for replaying.
func TestShortNewlyForkedFastSyncedRepair(t *testing.T) {
testShortNewlyForkedFastSyncedRepair(t, false)
}
func TestShortNewlyForkedFastSyncedRepairWithSnapshots(t *testing.T) {
testShortNewlyForkedFastSyncedRepair(t, true)
}
func testShortNewlyForkedFastSyncedRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3->S4->S5->S6
@ -342,7 +379,7 @@ func TestShortNewlyForkedFastSyncedRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a short canonical chain and a shorter side chain, where
@ -351,6 +388,13 @@ func TestShortNewlyForkedFastSyncedRepair(t *testing.T) {
// case we expect the chain to detect that it was fast syncing and not delete
// anything, since we can just pick up directly where we left off.
func TestShortNewlyForkedFastSyncingRepair(t *testing.T) {
testShortNewlyForkedFastSyncingRepair(t, false)
}
func TestShortNewlyForkedFastSyncingRepairWithSnapshots(t *testing.T) {
testShortNewlyForkedFastSyncingRepair(t, true)
}
func testShortNewlyForkedFastSyncingRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3->S4->S5->S6
@ -382,14 +426,17 @@ func TestShortNewlyForkedFastSyncingRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a recovery for a short canonical chain and a longer side chain, where a
// recent block was already committed to disk and then the process crashed. In this
// case we expect the canonical chain to be rolled back to the committed block, but
// the chain data itself left in the database for replaying.
func TestShortReorgedRepair(t *testing.T) {
func TestShortReorgedRepair(t *testing.T) { testShortReorgedRepair(t, false) }
func TestShortReorgedRepairWithSnapshots(t *testing.T) { testShortReorgedRepair(t, true) }
func testShortReorgedRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
@ -421,7 +468,7 @@ func TestShortReorgedRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a short canonical chain and a longer side chain, where
@ -429,6 +476,13 @@ func TestShortReorgedRepair(t *testing.T) {
// crashed. In this case we expect the canonical chain to be rolled back to the
// committed block, but the chain data itself left in the database for replaying.
func TestShortReorgedFastSyncedRepair(t *testing.T) {
testShortReorgedFastSyncedRepair(t, false)
}
func TestShortReorgedFastSyncedRepairWithSnapshots(t *testing.T) {
testShortReorgedFastSyncedRepair(t, true)
}
func testShortReorgedFastSyncedRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
@ -460,7 +514,7 @@ func TestShortReorgedFastSyncedRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a short canonical chain and a longer side chain, where
@ -468,6 +522,13 @@ func TestShortReorgedFastSyncedRepair(t *testing.T) {
// this case we expect the chain to detect that it was fast syncing and not delete
// anything, since we can just pick up directly where we left off.
func TestShortReorgedFastSyncingRepair(t *testing.T) {
testShortReorgedFastSyncingRepair(t, false)
}
func TestShortReorgedFastSyncingRepairWithSnapshots(t *testing.T) {
testShortReorgedFastSyncingRepair(t, true)
}
func testShortReorgedFastSyncingRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
@ -499,14 +560,17 @@ func TestShortReorgedFastSyncingRepair(t *testing.T) {
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks where a recent
// block - newer than the ancient limit - was already committed to disk and then
// the process crashed. In this case we expect the chain to be rolled back to the
// committed block, with everything afterwads kept as fast sync data.
func TestLongShallowRepair(t *testing.T) {
func TestLongShallowRepair(t *testing.T) { testLongShallowRepair(t, false) }
func TestLongShallowRepairWithSnapshots(t *testing.T) { testLongShallowRepair(t, true) }
func testLongShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
//
@ -541,14 +605,17 @@ func TestLongShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks where a recent
// block - older than the ancient limit - was already committed to disk and then
// the process crashed. In this case we expect the chain to be rolled back to the
// committed block, with everything afterwads deleted.
func TestLongDeepRepair(t *testing.T) {
func TestLongDeepRepair(t *testing.T) { testLongDeepRepair(t, false) }
func TestLongDeepRepairWithSnapshots(t *testing.T) { testLongDeepRepair(t, true) }
func testLongDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
//
@ -582,7 +649,7 @@ func TestLongDeepRepair(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks where the fast
@ -590,6 +657,13 @@ func TestLongDeepRepair(t *testing.T) {
// which the process crashed. In this case we expect the chain to be rolled back
// to the committed block, with everything afterwads kept as fast sync data.
func TestLongFastSyncedShallowRepair(t *testing.T) {
testLongFastSyncedShallowRepair(t, false)
}
func TestLongFastSyncedShallowRepairWithSnapshots(t *testing.T) {
testLongFastSyncedShallowRepair(t, true)
}
func testLongFastSyncedShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
//
@ -624,14 +698,17 @@ func TestLongFastSyncedShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks where the fast
// sync pivot point - older than the ancient limit - was already committed, after
// which the process crashed. In this case we expect the chain to be rolled back
// to the committed block, with everything afterwads deleted.
func TestLongFastSyncedDeepRepair(t *testing.T) {
func TestLongFastSyncedDeepRepair(t *testing.T) { testLongFastSyncedDeepRepair(t, false) }
func TestLongFastSyncedDeepRepairWithSnapshots(t *testing.T) { testLongFastSyncedDeepRepair(t, true) }
func testLongFastSyncedDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
//
@ -665,7 +742,7 @@ func TestLongFastSyncedDeepRepair(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks where the fast
@ -674,6 +751,13 @@ func TestLongFastSyncedDeepRepair(t *testing.T) {
// syncing and not delete anything, since we can just pick up directly where we
// left off.
func TestLongFastSyncingShallowRepair(t *testing.T) {
testLongFastSyncingShallowRepair(t, false)
}
func TestLongFastSyncingShallowRepairWithSnapshots(t *testing.T) {
testLongFastSyncingShallowRepair(t, true)
}
func testLongFastSyncingShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
//
@ -708,7 +792,7 @@ func TestLongFastSyncingShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks where the fast
@ -716,7 +800,10 @@ func TestLongFastSyncingShallowRepair(t *testing.T) {
// process crashed. In this case we expect the chain to detect that it was fast
// syncing and not delete anything, since we can just pick up directly where we
// left off.
func TestLongFastSyncingDeepRepair(t *testing.T) {
func TestLongFastSyncingDeepRepair(t *testing.T) { testLongFastSyncingDeepRepair(t, false) }
func TestLongFastSyncingDeepRepairWithSnapshots(t *testing.T) { testLongFastSyncingDeepRepair(t, true) }
func testLongFastSyncingDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
//
@ -751,7 +838,7 @@ func TestLongFastSyncingDeepRepair(t *testing.T) {
expHeadHeader: 24,
expHeadFastBlock: 24,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -761,6 +848,13 @@ func TestLongFastSyncingDeepRepair(t *testing.T) {
// rolled back to the committed block, with everything afterwads kept as fast
// sync data; the side chain completely nuked by the freezer.
func TestLongOldForkedShallowRepair(t *testing.T) {
testLongOldForkedShallowRepair(t, false)
}
func TestLongOldForkedShallowRepairWithSnapshots(t *testing.T) {
testLongOldForkedShallowRepair(t, true)
}
func testLongOldForkedShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3
@ -796,7 +890,7 @@ func TestLongOldForkedShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -805,7 +899,10 @@ func TestLongOldForkedShallowRepair(t *testing.T) {
// chain is below the committed block. In this case we expect the canonical chain
// to be rolled back to the committed block, with everything afterwads deleted;
// the side chain completely nuked by the freezer.
func TestLongOldForkedDeepRepair(t *testing.T) {
func TestLongOldForkedDeepRepair(t *testing.T) { testLongOldForkedDeepRepair(t, false) }
func TestLongOldForkedDeepRepairWithSnapshots(t *testing.T) { testLongOldForkedDeepRepair(t, true) }
func testLongOldForkedDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3
@ -840,7 +937,7 @@ func TestLongOldForkedDeepRepair(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -850,6 +947,13 @@ func TestLongOldForkedDeepRepair(t *testing.T) {
// to be rolled back to the committed block, with everything afterwads kept as
// fast sync data; the side chain completely nuked by the freezer.
func TestLongOldForkedFastSyncedShallowRepair(t *testing.T) {
testLongOldForkedFastSyncedShallowRepair(t, false)
}
func TestLongOldForkedFastSyncedShallowRepairWithSnapshots(t *testing.T) {
testLongOldForkedFastSyncedShallowRepair(t, true)
}
func testLongOldForkedFastSyncedShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3
@ -885,7 +989,7 @@ func TestLongOldForkedFastSyncedShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -895,6 +999,13 @@ func TestLongOldForkedFastSyncedShallowRepair(t *testing.T) {
// chain to be rolled back to the committed block, with everything afterwads deleted;
// the side chain completely nuked by the freezer.
func TestLongOldForkedFastSyncedDeepRepair(t *testing.T) {
testLongOldForkedFastSyncedDeepRepair(t, false)
}
func TestLongOldForkedFastSyncedDeepRepairWithSnapshots(t *testing.T) {
testLongOldForkedFastSyncedDeepRepair(t, true)
}
func testLongOldForkedFastSyncedDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3
@ -929,7 +1040,7 @@ func TestLongOldForkedFastSyncedDeepRepair(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -939,6 +1050,13 @@ func TestLongOldForkedFastSyncedDeepRepair(t *testing.T) {
// that it was fast syncing and not delete anything. The side chain is completely
// nuked by the freezer.
func TestLongOldForkedFastSyncingShallowRepair(t *testing.T) {
testLongOldForkedFastSyncingShallowRepair(t, false)
}
func TestLongOldForkedFastSyncingShallowRepairWithSnapshots(t *testing.T) {
testLongOldForkedFastSyncingShallowRepair(t, true)
}
func testLongOldForkedFastSyncingShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3
@ -974,7 +1092,7 @@ func TestLongOldForkedFastSyncingShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -984,6 +1102,13 @@ func TestLongOldForkedFastSyncingShallowRepair(t *testing.T) {
// that it was fast syncing and not delete anything. The side chain is completely
// nuked by the freezer.
func TestLongOldForkedFastSyncingDeepRepair(t *testing.T) {
testLongOldForkedFastSyncingDeepRepair(t, false)
}
func TestLongOldForkedFastSyncingDeepRepairWithSnapshots(t *testing.T) {
testLongOldForkedFastSyncingDeepRepair(t, true)
}
func testLongOldForkedFastSyncingDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3
@ -1019,7 +1144,7 @@ func TestLongOldForkedFastSyncingDeepRepair(t *testing.T) {
expHeadHeader: 24,
expHeadFastBlock: 24,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -1029,6 +1154,13 @@ func TestLongOldForkedFastSyncingDeepRepair(t *testing.T) {
// rolled back to the committed block, with everything afterwads kept as fast
// sync data; the side chain completely nuked by the freezer.
func TestLongNewerForkedShallowRepair(t *testing.T) {
testLongNewerForkedShallowRepair(t, false)
}
func TestLongNewerForkedShallowRepairWithSnapshots(t *testing.T) {
testLongNewerForkedShallowRepair(t, true)
}
func testLongNewerForkedShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1064,7 +1196,7 @@ func TestLongNewerForkedShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -1073,7 +1205,10 @@ func TestLongNewerForkedShallowRepair(t *testing.T) {
// chain is above the committed block. In this case we expect the canonical chain
// to be rolled back to the committed block, with everything afterwads deleted;
// the side chain completely nuked by the freezer.
func TestLongNewerForkedDeepRepair(t *testing.T) {
func TestLongNewerForkedDeepRepair(t *testing.T) { testLongNewerForkedDeepRepair(t, false) }
func TestLongNewerForkedDeepRepairWithSnapshots(t *testing.T) { testLongNewerForkedDeepRepair(t, true) }
func testLongNewerForkedDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1108,7 +1243,7 @@ func TestLongNewerForkedDeepRepair(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -1118,6 +1253,13 @@ func TestLongNewerForkedDeepRepair(t *testing.T) {
// to be rolled back to the committed block, with everything afterwads kept as fast
// sync data; the side chain completely nuked by the freezer.
func TestLongNewerForkedFastSyncedShallowRepair(t *testing.T) {
testLongNewerForkedFastSyncedShallowRepair(t, false)
}
func TestLongNewerForkedFastSyncedShallowRepairWithSnapshots(t *testing.T) {
testLongNewerForkedFastSyncedShallowRepair(t, true)
}
func testLongNewerForkedFastSyncedShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1153,7 +1295,7 @@ func TestLongNewerForkedFastSyncedShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -1163,6 +1305,13 @@ func TestLongNewerForkedFastSyncedShallowRepair(t *testing.T) {
// chain to be rolled back to the committed block, with everything afterwads deleted;
// the side chain completely nuked by the freezer.
func TestLongNewerForkedFastSyncedDeepRepair(t *testing.T) {
testLongNewerForkedFastSyncedDeepRepair(t, false)
}
func TestLongNewerForkedFastSyncedDeepRepairWithSnapshots(t *testing.T) {
testLongNewerForkedFastSyncedDeepRepair(t, true)
}
func testLongNewerForkedFastSyncedDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1197,7 +1346,7 @@ func TestLongNewerForkedFastSyncedDeepRepair(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -1207,6 +1356,13 @@ func TestLongNewerForkedFastSyncedDeepRepair(t *testing.T) {
// that it was fast syncing and not delete anything. The side chain is completely
// nuked by the freezer.
func TestLongNewerForkedFastSyncingShallowRepair(t *testing.T) {
testLongNewerForkedFastSyncingShallowRepair(t, false)
}
func TestLongNewerForkedFastSyncingShallowRepairWithSnapshots(t *testing.T) {
testLongNewerForkedFastSyncingShallowRepair(t, true)
}
func testLongNewerForkedFastSyncingShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1242,7 +1398,7 @@ func TestLongNewerForkedFastSyncingShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a shorter
@ -1252,6 +1408,13 @@ func TestLongNewerForkedFastSyncingShallowRepair(t *testing.T) {
// that it was fast syncing and not delete anything. The side chain is completely
// nuked by the freezer.
func TestLongNewerForkedFastSyncingDeepRepair(t *testing.T) {
testLongNewerForkedFastSyncingDeepRepair(t, false)
}
func TestLongNewerForkedFastSyncingDeepRepairWithSnapshots(t *testing.T) {
testLongNewerForkedFastSyncingDeepRepair(t, true)
}
func testLongNewerForkedFastSyncingDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1287,7 +1450,7 @@ func TestLongNewerForkedFastSyncingDeepRepair(t *testing.T) {
expHeadHeader: 24,
expHeadFastBlock: 24,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a longer side
@ -1295,7 +1458,10 @@ func TestLongNewerForkedFastSyncingDeepRepair(t *testing.T) {
// to disk and then the process crashed. In this case we expect the chain to be
// rolled back to the committed block, with everything afterwads kept as fast sync
// data. The side chain completely nuked by the freezer.
func TestLongReorgedShallowRepair(t *testing.T) {
func TestLongReorgedShallowRepair(t *testing.T) { testLongReorgedShallowRepair(t, false) }
func TestLongReorgedShallowRepairWithSnapshots(t *testing.T) { testLongReorgedShallowRepair(t, true) }
func testLongReorgedShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1331,7 +1497,7 @@ func TestLongReorgedShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a longer side
@ -1339,7 +1505,10 @@ func TestLongReorgedShallowRepair(t *testing.T) {
// to disk and then the process crashed. In this case we expect the canonical chains
// to be rolled back to the committed block, with everything afterwads deleted. The
// side chain completely nuked by the freezer.
func TestLongReorgedDeepRepair(t *testing.T) {
func TestLongReorgedDeepRepair(t *testing.T) { testLongReorgedDeepRepair(t, false) }
func TestLongReorgedDeepRepairWithSnapshots(t *testing.T) { testLongReorgedDeepRepair(t, true) }
func testLongReorgedDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1374,7 +1543,7 @@ func TestLongReorgedDeepRepair(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a longer
@ -1384,6 +1553,13 @@ func TestLongReorgedDeepRepair(t *testing.T) {
// afterwads kept as fast sync data. The side chain completely nuked by the
// freezer.
func TestLongReorgedFastSyncedShallowRepair(t *testing.T) {
testLongReorgedFastSyncedShallowRepair(t, false)
}
func TestLongReorgedFastSyncedShallowRepairWithSnapshots(t *testing.T) {
testLongReorgedFastSyncedShallowRepair(t, true)
}
func testLongReorgedFastSyncedShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1419,7 +1595,7 @@ func TestLongReorgedFastSyncedShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a longer
@ -1428,6 +1604,13 @@ func TestLongReorgedFastSyncedShallowRepair(t *testing.T) {
// expect the canonical chains to be rolled back to the committed block, with
// everything afterwads deleted. The side chain completely nuked by the freezer.
func TestLongReorgedFastSyncedDeepRepair(t *testing.T) {
testLongReorgedFastSyncedDeepRepair(t, false)
}
func TestLongReorgedFastSyncedDeepRepairWithSnapshots(t *testing.T) {
testLongReorgedFastSyncedDeepRepair(t, true)
}
func testLongReorgedFastSyncedDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1462,7 +1645,7 @@ func TestLongReorgedFastSyncedDeepRepair(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a longer
@ -1471,6 +1654,13 @@ func TestLongReorgedFastSyncedDeepRepair(t *testing.T) {
// chain to detect that it was fast syncing and not delete anything, since we
// can just pick up directly where we left off.
func TestLongReorgedFastSyncingShallowRepair(t *testing.T) {
testLongReorgedFastSyncingShallowRepair(t, false)
}
func TestLongReorgedFastSyncingShallowRepairWithSnapshots(t *testing.T) {
testLongReorgedFastSyncingShallowRepair(t, true)
}
func testLongReorgedFastSyncingShallowRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1506,7 +1696,7 @@ func TestLongReorgedFastSyncingShallowRepair(t *testing.T) {
expHeadHeader: 18,
expHeadFastBlock: 18,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a recovery for a long canonical chain with frozen blocks and a longer
@ -1515,6 +1705,13 @@ func TestLongReorgedFastSyncingShallowRepair(t *testing.T) {
// chain to detect that it was fast syncing and not delete anything, since we
// can just pick up directly where we left off.
func TestLongReorgedFastSyncingDeepRepair(t *testing.T) {
testLongReorgedFastSyncingDeepRepair(t, false)
}
func TestLongReorgedFastSyncingDeepRepairWithSnapshots(t *testing.T) {
testLongReorgedFastSyncingDeepRepair(t, true)
}
func testLongReorgedFastSyncingDeepRepair(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1550,10 +1747,10 @@ func TestLongReorgedFastSyncingDeepRepair(t *testing.T) {
expHeadHeader: 24,
expHeadFastBlock: 24,
expHeadBlock: 0,
})
}, snapshots)
}
func testRepair(t *testing.T, tt *rewindTest) {
func testRepair(t *testing.T, tt *rewindTest, snapshots bool) {
// It's hard to follow the test case, visualize the input
//log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
// fmt.Println(tt.dump(true))
@ -1575,8 +1772,18 @@ func testRepair(t *testing.T, tt *rewindTest) {
var (
genesis = new(Genesis).MustCommit(db)
engine = ethash.NewFullFaker()
config = &CacheConfig{
TrieCleanLimit: 256,
TrieDirtyLimit: 256,
TrieTimeLimit: 5 * time.Minute,
SnapshotLimit: 0, // Disable snapshot by default
}
)
chain, err := NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
if snapshots {
config.SnapshotLimit = 256
config.SnapshotWait = true
}
chain, err := NewBlockChain(db, config, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
if err != nil {
t.Fatalf("Failed to create chain: %v", err)
}
@ -1599,6 +1806,11 @@ func testRepair(t *testing.T, tt *rewindTest) {
}
if tt.commitBlock > 0 {
chain.stateCache.TrieDB().Commit(canonblocks[tt.commitBlock-1].Root(), true, nil)
if snapshots {
if err := chain.snaps.Cap(canonblocks[tt.commitBlock-1].Root(), 0); err != nil {
t.Fatalf("Failed to flatten snapshots: %v", err)
}
}
}
if _, err := chain.InsertChain(canonblocks[tt.commitBlock:]); err != nil {
t.Fatalf("Failed to import canonical chain tail: %v", err)

320
core/blockchain_sethead_test.go
View File

@ -26,6 +26,7 @@ import (
"os"
"strings"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/ethash"
@ -150,7 +151,10 @@ func (tt *rewindTest) dump(crash bool) string {
// chain to be rolled back to the committed block. Everything above the sethead
// point should be deleted. In between the committed block and the requested head
// the data can remain as "fast sync" data to avoid redownloading it.
func TestShortSetHead(t *testing.T) {
func TestShortSetHead(t *testing.T) { testShortSetHead(t, false) }
func TestShortSetHeadWithSnapshots(t *testing.T) { testShortSetHead(t, true) }
func testShortSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
@ -181,7 +185,7 @@ func TestShortSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a short canonical chain where the fast sync pivot point was
@ -190,7 +194,10 @@ func TestShortSetHead(t *testing.T) {
// Everything above the sethead point should be deleted. In between the committed
// block and the requested head the data can remain as "fast sync" data to avoid
// redownloading it.
func TestShortFastSyncedSetHead(t *testing.T) {
func TestShortFastSyncedSetHead(t *testing.T) { testShortFastSyncedSetHead(t, false) }
func TestShortFastSyncedSetHeadWithSnapshots(t *testing.T) { testShortFastSyncedSetHead(t, true) }
func testShortFastSyncedSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
@ -221,7 +228,7 @@ func TestShortFastSyncedSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a short canonical chain where the fast sync pivot point was
@ -229,7 +236,10 @@ func TestShortFastSyncedSetHead(t *testing.T) {
// detect that it was fast syncing and delete everything from the new head, since
// we can just pick up fast syncing from there. The head full block should be set
// to the genesis.
func TestShortFastSyncingSetHead(t *testing.T) {
func TestShortFastSyncingSetHead(t *testing.T) { testShortFastSyncingSetHead(t, false) }
func TestShortFastSyncingSetHeadWithSnapshots(t *testing.T) { testShortFastSyncingSetHead(t, true) }
func testShortFastSyncingSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
@ -260,7 +270,7 @@ func TestShortFastSyncingSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a sethead for a short canonical chain and a shorter side chain, where a
@ -270,7 +280,10 @@ func TestShortFastSyncingSetHead(t *testing.T) {
// above the sethead point should be deleted. In between the committed block and
// the requested head the data can remain as "fast sync" data to avoid redownloading
// it. The side chain should be left alone as it was shorter.
func TestShortOldForkedSetHead(t *testing.T) {
func TestShortOldForkedSetHead(t *testing.T) { testShortOldForkedSetHead(t, false) }
func TestShortOldForkedSetHeadWithSnapshots(t *testing.T) { testShortOldForkedSetHead(t, true) }
func testShortOldForkedSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3
@ -303,7 +316,7 @@ func TestShortOldForkedSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a short canonical chain and a shorter side chain, where
@ -314,6 +327,13 @@ func TestShortOldForkedSetHead(t *testing.T) {
// committed block and the requested head the data can remain as "fast sync" data
// to avoid redownloading it. The side chain should be left alone as it was shorter.
func TestShortOldForkedFastSyncedSetHead(t *testing.T) {
testShortOldForkedFastSyncedSetHead(t, false)
}
func TestShortOldForkedFastSyncedSetHeadWithSnapshots(t *testing.T) {
testShortOldForkedFastSyncedSetHead(t, true)
}
func testShortOldForkedFastSyncedSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3
@ -346,7 +366,7 @@ func TestShortOldForkedFastSyncedSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a short canonical chain and a shorter side chain, where
@ -356,6 +376,13 @@ func TestShortOldForkedFastSyncedSetHead(t *testing.T) {
// head, since we can just pick up fast syncing from there. The head full block
// should be set to the genesis.
func TestShortOldForkedFastSyncingSetHead(t *testing.T) {
testShortOldForkedFastSyncingSetHead(t, false)
}
func TestShortOldForkedFastSyncingSetHeadWithSnapshots(t *testing.T) {
testShortOldForkedFastSyncingSetHead(t, true)
}
func testShortOldForkedFastSyncingSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3
@ -388,7 +415,7 @@ func TestShortOldForkedFastSyncingSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a sethead for a short canonical chain and a shorter side chain, where a
@ -402,7 +429,10 @@ func TestShortOldForkedFastSyncingSetHead(t *testing.T) {
// The side chain could be left to be if the fork point was before the new head
// we are deleting to, but it would be exceedingly hard to detect that case and
// properly handle it, so we'll trade extra work in exchange for simpler code.
func TestShortNewlyForkedSetHead(t *testing.T) {
func TestShortNewlyForkedSetHead(t *testing.T) { testShortNewlyForkedSetHead(t, false) }
func TestShortNewlyForkedSetHeadWithSnapshots(t *testing.T) { testShortNewlyForkedSetHead(t, true) }
func testShortNewlyForkedSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8
@ -435,7 +465,7 @@ func TestShortNewlyForkedSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a short canonical chain and a shorter side chain, where
@ -449,6 +479,13 @@ func TestShortNewlyForkedSetHead(t *testing.T) {
// we are deleting to, but it would be exceedingly hard to detect that case and
// properly handle it, so we'll trade extra work in exchange for simpler code.
func TestShortNewlyForkedFastSyncedSetHead(t *testing.T) {
testShortNewlyForkedFastSyncedSetHead(t, false)
}
func TestShortNewlyForkedFastSyncedSetHeadWithSnapshots(t *testing.T) {
testShortNewlyForkedFastSyncedSetHead(t, true)
}
func testShortNewlyForkedFastSyncedSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8
@ -481,7 +518,7 @@ func TestShortNewlyForkedFastSyncedSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a short canonical chain and a shorter side chain, where
@ -495,6 +532,13 @@ func TestShortNewlyForkedFastSyncedSetHead(t *testing.T) {
// we are deleting to, but it would be exceedingly hard to detect that case and
// properly handle it, so we'll trade extra work in exchange for simpler code.
func TestShortNewlyForkedFastSyncingSetHead(t *testing.T) {
testShortNewlyForkedFastSyncingSetHead(t, false)
}
func TestShortNewlyForkedFastSyncingSetHeadWithSnapshots(t *testing.T) {
testShortNewlyForkedFastSyncingSetHead(t, true)
}
func testShortNewlyForkedFastSyncingSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8
@ -527,7 +571,7 @@ func TestShortNewlyForkedFastSyncingSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a sethead for a short canonical chain and a longer side chain, where a
@ -540,7 +584,10 @@ func TestShortNewlyForkedFastSyncingSetHead(t *testing.T) {
// The side chain could be left to be if the fork point was before the new head
// we are deleting to, but it would be exceedingly hard to detect that case and
// properly handle it, so we'll trade extra work in exchange for simpler code.
func TestShortReorgedSetHead(t *testing.T) {
func TestShortReorgedSetHead(t *testing.T) { testShortReorgedSetHead(t, false) }
func TestShortReorgedSetHeadWithSnapshots(t *testing.T) { testShortReorgedSetHead(t, true) }
func testShortReorgedSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
@ -573,7 +620,7 @@ func TestShortReorgedSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a short canonical chain and a longer side chain, where
@ -588,6 +635,13 @@ func TestShortReorgedSetHead(t *testing.T) {
// we are deleting to, but it would be exceedingly hard to detect that case and
// properly handle it, so we'll trade extra work in exchange for simpler code.
func TestShortReorgedFastSyncedSetHead(t *testing.T) {
testShortReorgedFastSyncedSetHead(t, false)
}
func TestShortReorgedFastSyncedSetHeadWithSnapshots(t *testing.T) {
testShortReorgedFastSyncedSetHead(t, true)
}
func testShortReorgedFastSyncedSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
@ -620,7 +674,7 @@ func TestShortReorgedFastSyncedSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a short canonical chain and a longer side chain, where
@ -633,6 +687,13 @@ func TestShortReorgedFastSyncedSetHead(t *testing.T) {
// we are deleting to, but it would be exceedingly hard to detect that case and
// properly handle it, so we'll trade extra work in exchange for simpler code.
func TestShortReorgedFastSyncingSetHead(t *testing.T) {
testShortReorgedFastSyncingSetHead(t, false)
}
func TestShortReorgedFastSyncingSetHeadWithSnapshots(t *testing.T) {
testShortReorgedFastSyncingSetHead(t, true)
}
func testShortReorgedFastSyncingSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10
@ -665,7 +726,7 @@ func TestShortReorgedFastSyncingSetHead(t *testing.T) {
expHeadHeader: 7,
expHeadFastBlock: 7,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks where a recent
@ -674,7 +735,10 @@ func TestShortReorgedFastSyncingSetHead(t *testing.T) {
// to the committed block. Everything above the sethead point should be deleted.
// In between the committed block and the requested head the data can remain as
// "fast sync" data to avoid redownloading it.
func TestLongShallowSetHead(t *testing.T) {
func TestLongShallowSetHead(t *testing.T) { testLongShallowSetHead(t, false) }
func TestLongShallowSetHeadWithSnapshots(t *testing.T) { testLongShallowSetHead(t, true) }
func testLongShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
//
@ -710,7 +774,7 @@ func TestLongShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks where a recent
@ -718,7 +782,10 @@ func TestLongShallowSetHead(t *testing.T) {
// sethead was called. In this case we expect the full chain to be rolled back
// to the committed block. Since the ancient limit was underflown, everything
// needs to be deleted onwards to avoid creating a gap.
func TestLongDeepSetHead(t *testing.T) {
func TestLongDeepSetHead(t *testing.T) { testLongDeepSetHead(t, false) }
func TestLongDeepSetHeadWithSnapshots(t *testing.T) { testLongDeepSetHead(t, true) }
func testLongDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
//
@ -753,7 +820,7 @@ func TestLongDeepSetHead(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks where the fast
@ -763,6 +830,13 @@ func TestLongDeepSetHead(t *testing.T) {
// deleted. In between the committed block and the requested head the data can
// remain as "fast sync" data to avoid redownloading it.
func TestLongFastSyncedShallowSetHead(t *testing.T) {
testLongFastSyncedShallowSetHead(t, false)
}
func TestLongFastSyncedShallowSetHeadWithSnapshots(t *testing.T) {
testLongFastSyncedShallowSetHead(t, true)
}
func testLongFastSyncedShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
//
@ -798,7 +872,7 @@ func TestLongFastSyncedShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks where the fast
@ -806,7 +880,10 @@ func TestLongFastSyncedShallowSetHead(t *testing.T) {
// which sethead was called. In this case we expect the full chain to be rolled
// back to the committed block. Since the ancient limit was underflown, everything
// needs to be deleted onwards to avoid creating a gap.
func TestLongFastSyncedDeepSetHead(t *testing.T) {
func TestLongFastSyncedDeepSetHead(t *testing.T) { testLongFastSyncedDeepSetHead(t, false) }
func TestLongFastSyncedDeepSetHeadWithSnapshots(t *testing.T) { testLongFastSyncedDeepSetHead(t, true) }
func testLongFastSyncedDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
//
@ -841,7 +918,7 @@ func TestLongFastSyncedDeepSetHead(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks where the fast
@ -850,6 +927,13 @@ func TestLongFastSyncedDeepSetHead(t *testing.T) {
// syncing and delete everything from the new head, since we can just pick up fast
// syncing from there.
func TestLongFastSyncingShallowSetHead(t *testing.T) {
testLongFastSyncingShallowSetHead(t, false)
}
func TestLongFastSyncingShallowSetHeadWithSnapshots(t *testing.T) {
testLongFastSyncingShallowSetHead(t, true)
}
func testLongFastSyncingShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
//
@ -885,7 +969,7 @@ func TestLongFastSyncingShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks where the fast
@ -894,6 +978,13 @@ func TestLongFastSyncingShallowSetHead(t *testing.T) {
// syncing and delete everything from the new head, since we can just pick up fast
// syncing from there.
func TestLongFastSyncingDeepSetHead(t *testing.T) {
testLongFastSyncingDeepSetHead(t, false)
}
func TestLongFastSyncingDeepSetHeadWithSnapshots(t *testing.T) {
testLongFastSyncingDeepSetHead(t, true)
}
func testLongFastSyncingDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
//
@ -928,7 +1019,7 @@ func TestLongFastSyncingDeepSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter side
@ -939,6 +1030,13 @@ func TestLongFastSyncingDeepSetHead(t *testing.T) {
// can remain as "fast sync" data to avoid redownloading it. The side chain is nuked
// by the freezer.
func TestLongOldForkedShallowSetHead(t *testing.T) {
testLongOldForkedShallowSetHead(t, false)
}
func TestLongOldForkedShallowSetHeadWithSnapshots(t *testing.T) {
testLongOldForkedShallowSetHead(t, true)
}
func testLongOldForkedShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3
@ -975,7 +1073,7 @@ func TestLongOldForkedShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter side
@ -984,7 +1082,10 @@ func TestLongOldForkedShallowSetHead(t *testing.T) {
// chain to be rolled back to the committed block. Since the ancient limit was
// underflown, everything needs to be deleted onwards to avoid creating a gap. The
// side chain is nuked by the freezer.
func TestLongOldForkedDeepSetHead(t *testing.T) {
func TestLongOldForkedDeepSetHead(t *testing.T) { testLongOldForkedDeepSetHead(t, false) }
func TestLongOldForkedDeepSetHeadWithSnapshots(t *testing.T) { testLongOldForkedDeepSetHead(t, true) }
func testLongOldForkedDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3
@ -1020,7 +1121,7 @@ func TestLongOldForkedDeepSetHead(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter
@ -1032,6 +1133,13 @@ func TestLongOldForkedDeepSetHead(t *testing.T) {
// requested head the data can remain as "fast sync" data to avoid redownloading
// it. The side chain is nuked by the freezer.
func TestLongOldForkedFastSyncedShallowSetHead(t *testing.T) {
testLongOldForkedFastSyncedShallowSetHead(t, false)
}
func TestLongOldForkedFastSyncedShallowSetHeadWithSnapshots(t *testing.T) {
testLongOldForkedFastSyncedShallowSetHead(t, true)
}
func testLongOldForkedFastSyncedShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3
@ -1068,7 +1176,7 @@ func TestLongOldForkedFastSyncedShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter
@ -1079,6 +1187,13 @@ func TestLongOldForkedFastSyncedShallowSetHead(t *testing.T) {
// underflown, everything needs to be deleted onwards to avoid creating a gap. The
// side chain is nuked by the freezer.
func TestLongOldForkedFastSyncedDeepSetHead(t *testing.T) {
testLongOldForkedFastSyncedDeepSetHead(t, false)
}
func TestLongOldForkedFastSyncedDeepSetHeadWithSnapshots(t *testing.T) {
testLongOldForkedFastSyncedDeepSetHead(t, true)
}
func testLongOldForkedFastSyncedDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3
@ -1114,7 +1229,7 @@ func TestLongOldForkedFastSyncedDeepSetHead(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter
@ -1125,6 +1240,13 @@ func TestLongOldForkedFastSyncedDeepSetHead(t *testing.T) {
// just pick up fast syncing from there. The side chain is completely nuked by the
// freezer.
func TestLongOldForkedFastSyncingShallowSetHead(t *testing.T) {
testLongOldForkedFastSyncingShallowSetHead(t, false)
}
func TestLongOldForkedFastSyncingShallowSetHeadWithSnapshots(t *testing.T) {
testLongOldForkedFastSyncingShallowSetHead(t, true)
}
func testLongOldForkedFastSyncingShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3
@ -1161,7 +1283,7 @@ func TestLongOldForkedFastSyncingShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter
@ -1172,6 +1294,13 @@ func TestLongOldForkedFastSyncingShallowSetHead(t *testing.T) {
// just pick up fast syncing from there. The side chain is completely nuked by the
// freezer.
func TestLongOldForkedFastSyncingDeepSetHead(t *testing.T) {
testLongOldForkedFastSyncingDeepSetHead(t, false)
}
func TestLongOldForkedFastSyncingDeepSetHeadWithSnapshots(t *testing.T) {
testLongOldForkedFastSyncingDeepSetHead(t, true)
}
func testLongOldForkedFastSyncingDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3
@ -1207,7 +1336,7 @@ func TestLongOldForkedFastSyncingDeepSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter
@ -1216,6 +1345,13 @@ func TestLongOldForkedFastSyncingDeepSetHead(t *testing.T) {
// chain is above the committed block. In this case the freezer will delete the
// sidechain since it's dangling, reverting to TestLongShallowSetHead.
func TestLongNewerForkedShallowSetHead(t *testing.T) {
testLongNewerForkedShallowSetHead(t, false)
}
func TestLongNewerForkedShallowSetHeadWithSnapshots(t *testing.T) {
testLongNewerForkedShallowSetHead(t, true)
}
func testLongNewerForkedShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1252,7 +1388,7 @@ func TestLongNewerForkedShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter
@ -1261,6 +1397,13 @@ func TestLongNewerForkedShallowSetHead(t *testing.T) {
// chain is above the committed block. In this case the freezer will delete the
// sidechain since it's dangling, reverting to TestLongDeepSetHead.
func TestLongNewerForkedDeepSetHead(t *testing.T) {
testLongNewerForkedDeepSetHead(t, false)
}
func TestLongNewerForkedDeepSetHeadWithSnapshots(t *testing.T) {
testLongNewerForkedDeepSetHead(t, true)
}
func testLongNewerForkedDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1296,7 +1439,7 @@ func TestLongNewerForkedDeepSetHead(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter
@ -1305,6 +1448,13 @@ func TestLongNewerForkedDeepSetHead(t *testing.T) {
// the side chain is above the committed block. In this case the freezer will delete
// the sidechain since it's dangling, reverting to TestLongFastSyncedShallowSetHead.
func TestLongNewerForkedFastSyncedShallowSetHead(t *testing.T) {
testLongNewerForkedFastSyncedShallowSetHead(t, false)
}
func TestLongNewerForkedFastSyncedShallowSetHeadWithSnapshots(t *testing.T) {
testLongNewerForkedFastSyncedShallowSetHead(t, true)
}
func testLongNewerForkedFastSyncedShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1341,7 +1491,7 @@ func TestLongNewerForkedFastSyncedShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter
@ -1350,6 +1500,13 @@ func TestLongNewerForkedFastSyncedShallowSetHead(t *testing.T) {
// the side chain is above the committed block. In this case the freezer will delete
// the sidechain since it's dangling, reverting to TestLongFastSyncedDeepSetHead.
func TestLongNewerForkedFastSyncedDeepSetHead(t *testing.T) {
testLongNewerForkedFastSyncedDeepSetHead(t, false)
}
func TestLongNewerForkedFastSyncedDeepSetHeadWithSnapshots(t *testing.T) {
testLongNewerForkedFastSyncedDeepSetHead(t, true)
}
func testLongNewerForkedFastSyncedDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1385,7 +1542,7 @@ func TestLongNewerForkedFastSyncedDeepSetHead(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter
@ -1394,6 +1551,13 @@ func TestLongNewerForkedFastSyncedDeepSetHead(t *testing.T) {
// chain is above the committed block. In this case the freezer will delete the
// sidechain since it's dangling, reverting to TestLongFastSyncinghallowSetHead.
func TestLongNewerForkedFastSyncingShallowSetHead(t *testing.T) {
testLongNewerForkedFastSyncingShallowSetHead(t, false)
}
func TestLongNewerForkedFastSyncingShallowSetHeadWithSnapshots(t *testing.T) {
testLongNewerForkedFastSyncingShallowSetHead(t, true)
}
func testLongNewerForkedFastSyncingShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1430,7 +1594,7 @@ func TestLongNewerForkedFastSyncingShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a shorter
@ -1439,6 +1603,13 @@ func TestLongNewerForkedFastSyncingShallowSetHead(t *testing.T) {
// chain is above the committed block. In this case the freezer will delete the
// sidechain since it's dangling, reverting to TestLongFastSyncingDeepSetHead.
func TestLongNewerForkedFastSyncingDeepSetHead(t *testing.T) {
testLongNewerForkedFastSyncingDeepSetHead(t, false)
}
func TestLongNewerForkedFastSyncingDeepSetHeadWithSnapshots(t *testing.T) {
testLongNewerForkedFastSyncingDeepSetHead(t, true)
}
func testLongNewerForkedFastSyncingDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12
@ -1474,14 +1645,17 @@ func TestLongNewerForkedFastSyncingDeepSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a longer side
// chain, where a recent block - newer than the ancient limit - was already committed
// to disk and then sethead was called. In this case the freezer will delete the
// sidechain since it's dangling, reverting to TestLongShallowSetHead.
func TestLongReorgedShallowSetHead(t *testing.T) {
func TestLongReorgedShallowSetHead(t *testing.T) { testLongReorgedShallowSetHead(t, false) }
func TestLongReorgedShallowSetHeadWithSnapshots(t *testing.T) { testLongReorgedShallowSetHead(t, true) }
func testLongReorgedShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1518,14 +1692,17 @@ func TestLongReorgedShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a longer side
// chain, where a recent block - older than the ancient limit - was already committed
// to disk and then sethead was called. In this case the freezer will delete the
// sidechain since it's dangling, reverting to TestLongDeepSetHead.
func TestLongReorgedDeepSetHead(t *testing.T) {
func TestLongReorgedDeepSetHead(t *testing.T) { testLongReorgedDeepSetHead(t, false) }
func TestLongReorgedDeepSetHeadWithSnapshots(t *testing.T) { testLongReorgedDeepSetHead(t, true) }
func testLongReorgedDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1561,7 +1738,7 @@ func TestLongReorgedDeepSetHead(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a longer
@ -1570,6 +1747,13 @@ func TestLongReorgedDeepSetHead(t *testing.T) {
// freezer will delete the sidechain since it's dangling, reverting to
// TestLongFastSyncedShallowSetHead.
func TestLongReorgedFastSyncedShallowSetHead(t *testing.T) {
testLongReorgedFastSyncedShallowSetHead(t, false)
}
func TestLongReorgedFastSyncedShallowSetHeadWithSnapshots(t *testing.T) {
testLongReorgedFastSyncedShallowSetHead(t, true)
}
func testLongReorgedFastSyncedShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1606,7 +1790,7 @@ func TestLongReorgedFastSyncedShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a longer
@ -1615,6 +1799,13 @@ func TestLongReorgedFastSyncedShallowSetHead(t *testing.T) {
// freezer will delete the sidechain since it's dangling, reverting to
// TestLongFastSyncedDeepSetHead.
func TestLongReorgedFastSyncedDeepSetHead(t *testing.T) {
testLongReorgedFastSyncedDeepSetHead(t, false)
}
func TestLongReorgedFastSyncedDeepSetHeadWithSnapshots(t *testing.T) {
testLongReorgedFastSyncedDeepSetHead(t, true)
}
func testLongReorgedFastSyncedDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1650,7 +1841,7 @@ func TestLongReorgedFastSyncedDeepSetHead(t *testing.T) {
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a longer
@ -1660,6 +1851,13 @@ func TestLongReorgedFastSyncedDeepSetHead(t *testing.T) {
// head, since we can just pick up fast syncing from there. The side chain is
// completely nuked by the freezer.
func TestLongReorgedFastSyncingShallowSetHead(t *testing.T) {
testLongReorgedFastSyncingShallowSetHead(t, false)
}
func TestLongReorgedFastSyncingShallowSetHeadWithSnapshots(t *testing.T) {
testLongReorgedFastSyncingShallowSetHead(t, true)
}
func testLongReorgedFastSyncingShallowSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1696,7 +1894,7 @@ func TestLongReorgedFastSyncingShallowSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 0,
})
}, snapshots)
}
// Tests a sethead for a long canonical chain with frozen blocks and a longer
@ -1706,6 +1904,13 @@ func TestLongReorgedFastSyncingShallowSetHead(t *testing.T) {
// head, since we can just pick up fast syncing from there. The side chain is
// completely nuked by the freezer.
func TestLongReorgedFastSyncingDeepSetHead(t *testing.T) {
testLongReorgedFastSyncingDeepSetHead(t, false)
}
func TestLongReorgedFastSyncingDeepSetHeadWithSnapshots(t *testing.T) {
testLongReorgedFastSyncingDeepSetHead(t, true)
}
func testLongReorgedFastSyncingDeepSetHead(t *testing.T, snapshots bool) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10->C11->C12->C13->C14->C15->C16->C17->C18->C19->C20->C21->C22->C23->C24 (HEAD)
// └->S1->S2->S3->S4->S5->S6->S7->S8->S9->S10->S11->S12->S13->S14->S15->S16->S17->S18->S19->S20->S21->S22->S23->S24->S25->S26
@ -1741,10 +1946,10 @@ func TestLongReorgedFastSyncingDeepSetHead(t *testing.T) {
expHeadHeader: 6,
expHeadFastBlock: 6,
expHeadBlock: 0,
})
}, snapshots)
}
func testSetHead(t *testing.T, tt *rewindTest) {
func testSetHead(t *testing.T, tt *rewindTest, snapshots bool) {
// It's hard to follow the test case, visualize the input
// log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
// fmt.Println(tt.dump(false))
@ -1766,8 +1971,18 @@ func testSetHead(t *testing.T, tt *rewindTest) {
var (
genesis = new(Genesis).MustCommit(db)
engine = ethash.NewFullFaker()
config = &CacheConfig{
TrieCleanLimit: 256,
TrieDirtyLimit: 256,
TrieTimeLimit: 5 * time.Minute,
SnapshotLimit: 0, // Disable snapshot
}
)
chain, err := NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
if snapshots {
config.SnapshotLimit = 256
config.SnapshotWait = true
}
chain, err := NewBlockChain(db, config, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
if err != nil {
t.Fatalf("Failed to create chain: %v", err)
}
@ -1790,6 +2005,11 @@ func testSetHead(t *testing.T, tt *rewindTest) {
}
if tt.commitBlock > 0 {
chain.stateCache.TrieDB().Commit(canonblocks[tt.commitBlock-1].Root(), true, nil)
if snapshots {
if err := chain.snaps.Cap(canonblocks[tt.commitBlock-1].Root(), 0); err != nil {
t.Fatalf("Failed to flatten snapshots: %v", err)
}
}
}
if _, err := chain.InsertChain(canonblocks[tt.commitBlock:]); err != nil {
t.Fatalf("Failed to import canonical chain tail: %v", err)

732
core/blockchain_snapshot_test.go Normal file
View File

@ -0,0 +1,732 @@
// Copyright 2020 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// Tests that abnormal program termination (i.e.crash) and restart can recovery
// the snapshot properly if the snapshot is enabled.
package core
import (
"bytes"
"fmt"
"io/ioutil"
"os"
"strings"
"testing"
"time"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/params"
)
// snapshotTest is a test case for snapshot recovery. It can be used for
// simulating these scenarios:
// (i) Geth restarts normally with valid legacy snapshot
// (ii) Geth restarts normally with valid new-format snapshot
// (iii) Geth restarts after the crash, with broken legacy snapshot
// (iv) Geth restarts after the crash, with broken new-format snapshot
// (v) Geth restarts normally, but it's requested to be rewound to a lower point via SetHead
// (vi) Geth restarts normally with a stale snapshot
type snapshotTest struct {
legacy bool // Flag whether the loaded snapshot is in legacy format
crash bool // Flag whether the Geth restarts from the previous crash
gapped int // Number of blocks to insert without enabling snapshot
setHead uint64 // Block number to set head back to
chainBlocks int // Number of blocks to generate for the canonical chain
snapshotBlock uint64 // Block number of the relevant snapshot disk layer
commitBlock uint64 // Block number for which to commit the state to disk
expCanonicalBlocks int // Number of canonical blocks expected to remain in the database (excl. genesis)
expHeadHeader uint64 // Block number of the expected head header
expHeadFastBlock uint64 // Block number of the expected head fast sync block
expHeadBlock uint64 // Block number of the expected head full block
expSnapshotBottom uint64 // The block height corresponding to the snapshot disk layer
}
func (tt *snapshotTest) dump() string {
buffer := new(strings.Builder)
fmt.Fprint(buffer, "Chain:\n G")
for i := 0; i < tt.chainBlocks; i++ {
fmt.Fprintf(buffer, "->C%d", i+1)
}
fmt.Fprint(buffer, " (HEAD)\n\n")
fmt.Fprintf(buffer, "Commit: G")
if tt.commitBlock > 0 {
fmt.Fprintf(buffer, ", C%d", tt.commitBlock)
}
fmt.Fprint(buffer, "\n")
fmt.Fprintf(buffer, "Snapshot: G")
if tt.snapshotBlock > 0 {
fmt.Fprintf(buffer, ", C%d", tt.snapshotBlock)
}
fmt.Fprint(buffer, "\n")
if tt.crash {
fmt.Fprintf(buffer, "\nCRASH\n\n")
} else {
fmt.Fprintf(buffer, "\nSetHead(%d)\n\n", tt.setHead)
}
fmt.Fprintf(buffer, "------------------------------\n\n")
fmt.Fprint(buffer, "Expected in leveldb:\n G")
for i := 0; i < tt.expCanonicalBlocks; i++ {
fmt.Fprintf(buffer, "->C%d", i+1)
}
fmt.Fprintf(buffer, "\n\n")
fmt.Fprintf(buffer, "Expected head header : C%d\n", tt.expHeadHeader)
fmt.Fprintf(buffer, "Expected head fast block: C%d\n", tt.expHeadFastBlock)
if tt.expHeadBlock == 0 {
fmt.Fprintf(buffer, "Expected head block : G\n")
} else {
fmt.Fprintf(buffer, "Expected head block : C%d\n", tt.expHeadBlock)
}
if tt.expSnapshotBottom == 0 {
fmt.Fprintf(buffer, "Expected snapshot disk : G\n")
} else {
fmt.Fprintf(buffer, "Expected snapshot disk : C%d\n", tt.expSnapshotBottom)
}
return buffer.String()
}
// Tests a Geth restart with valid snapshot. Before the shutdown, all snapshot
// journal will be persisted correctly. In this case no snapshot recovery is
// required.
func TestRestartWithNewSnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G
// Snapshot: G
//
// SetHead(0)
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4->C5->C6->C7->C8
//
// Expected head header : C8
// Expected head fast block: C8
// Expected head block : C8
// Expected snapshot disk : G
testSnapshot(t, &snapshotTest{
legacy: false,
crash: false,
gapped: 0,
setHead: 0,
chainBlocks: 8,
snapshotBlock: 0,
commitBlock: 0,
expCanonicalBlocks: 8,
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 8,
expSnapshotBottom: 0, // Initial disk layer built from genesis
})
}
// Tests a Geth restart with valid but "legacy" snapshot. Before the shutdown,
// all snapshot journal will be persisted correctly. In this case no snapshot
// recovery is required.
func TestRestartWithLegacySnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G
// Snapshot: G
//
// SetHead(0)
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4->C5->C6->C7->C8
//
// Expected head header : C8
// Expected head fast block: C8
// Expected head block : C8
// Expected snapshot disk : G
testSnapshot(t, &snapshotTest{
legacy: true,
crash: false,
gapped: 0,
setHead: 0,
chainBlocks: 8,
snapshotBlock: 0,
commitBlock: 0,
expCanonicalBlocks: 8,
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 8,
expSnapshotBottom: 0, // Initial disk layer built from genesis
})
}
// Tests a Geth was crashed and restarts with a broken snapshot. In this case the
// chain head should be rewound to the point with available state. And also the
// new head should must be lower than disk layer. But there is no committed point
// so the chain should be rewound to genesis and the disk layer should be left
// for recovery.
func TestNoCommitCrashWithNewSnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G
// Snapshot: G, C4
//
// CRASH
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4->C5->C6->C7->C8
//
// Expected head header : C8
// Expected head fast block: C8
// Expected head block : G
// Expected snapshot disk : C4
testSnapshot(t, &snapshotTest{
legacy: false,
crash: true,
gapped: 0,
setHead: 0,
chainBlocks: 8,
snapshotBlock: 4,
commitBlock: 0,
expCanonicalBlocks: 8,
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 0,
expSnapshotBottom: 4, // Last committed disk layer, wait recovery
})
}
// Tests a Geth was crashed and restarts with a broken snapshot. In this case the
// chain head should be rewound to the point with available state. And also the
// new head should must be lower than disk layer. But there is only a low committed
// point so the chain should be rewound to committed point and the disk layer
// should be left for recovery.
func TestLowCommitCrashWithNewSnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G, C2
// Snapshot: G, C4
//
// CRASH
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4->C5->C6->C7->C8
//
// Expected head header : C8
// Expected head fast block: C8
// Expected head block : C2
// Expected snapshot disk : C4
testSnapshot(t, &snapshotTest{
legacy: false,
crash: true,
gapped: 0,
setHead: 0,
chainBlocks: 8,
snapshotBlock: 4,
commitBlock: 2,
expCanonicalBlocks: 8,
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 2,
expSnapshotBottom: 4, // Last committed disk layer, wait recovery
})
}
// Tests a Geth was crashed and restarts with a broken snapshot. In this case
// the chain head should be rewound to the point with available state. And also
// the new head should must be lower than disk layer. But there is only a high
// committed point so the chain should be rewound to genesis and the disk layer
// should be left for recovery.
func TestHighCommitCrashWithNewSnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G, C6
// Snapshot: G, C4
//
// CRASH
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4->C5->C6->C7->C8
//
// Expected head header : C8
// Expected head fast block: C8
// Expected head block : G
// Expected snapshot disk : C4
testSnapshot(t, &snapshotTest{
legacy: false,
crash: true,
gapped: 0,
setHead: 0,
chainBlocks: 8,
snapshotBlock: 4,
commitBlock: 6,
expCanonicalBlocks: 8,
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 0,
expSnapshotBottom: 4, // Last committed disk layer, wait recovery
})
}
// Tests a Geth was crashed and restarts with a broken and "legacy format"
// snapshot. In this case the entire legacy snapshot should be discared
// and rebuild from the new chain head. The new head here refers to the
// genesis because there is no committed point.
func TestNoCommitCrashWithLegacySnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G
// Snapshot: G, C4
//
// CRASH
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4->C5->C6->C7->C8
//
// Expected head header : C8
// Expected head fast block: C8
// Expected head block : G
// Expected snapshot disk : G
testSnapshot(t, &snapshotTest{
legacy: true,
crash: true,
gapped: 0,
setHead: 0,
chainBlocks: 8,
snapshotBlock: 4,
commitBlock: 0,
expCanonicalBlocks: 8,
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 0,
expSnapshotBottom: 0, // Rebuilt snapshot from the latest HEAD(genesis)
})
}
// Tests a Geth was crashed and restarts with a broken and "legacy format"
// snapshot. In this case the entire legacy snapshot should be discared
// and rebuild from the new chain head. The new head here refers to the
// block-2 because it's committed into the disk.
func TestLowCommitCrashWithLegacySnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G, C2
// Snapshot: G, C4
//
// CRASH
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4->C5->C6->C7->C8
//
// Expected head header : C8
// Expected head fast block: C8
// Expected head block : C2
// Expected snapshot disk : C2
testSnapshot(t, &snapshotTest{
legacy: true,
crash: true,
gapped: 0,
setHead: 0,
chainBlocks: 8,
snapshotBlock: 4,
commitBlock: 2,
expCanonicalBlocks: 8,
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 2,
expSnapshotBottom: 2, // Rebuilt snapshot from the latest HEAD
})
}
// Tests a Geth was crashed and restarts with a broken and "legacy format"
// snapshot. In this case the entire legacy snapshot should be discared
// and rebuild from the new chain head.
//
// The new head here refers to the the genesis, the reason is:
// - the state of block-6 is committed into the disk
// - the legacy disk layer of block-4 is committed into the disk
// - the head is rewound the genesis in order to find an available
// state lower than disk layer
func TestHighCommitCrashWithLegacySnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G, C6
// Snapshot: G, C4
//
// CRASH
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4->C5->C6->C7->C8
//
// Expected head header : C8
// Expected head fast block: C8
// Expected head block : G
// Expected snapshot disk : G
testSnapshot(t, &snapshotTest{
legacy: true,
crash: true,
gapped: 0,
setHead: 0,
chainBlocks: 8,
snapshotBlock: 4,
commitBlock: 6,
expCanonicalBlocks: 8,
expHeadHeader: 8,
expHeadFastBlock: 8,
expHeadBlock: 0,
expSnapshotBottom: 0, // Rebuilt snapshot from the latest HEAD(genesis)
})
}
// Tests a Geth was running with snapshot enabled. Then restarts without
// enabling snapshot and after that re-enable the snapshot again. In this
// case the snapshot should be rebuilt with latest chain head.
func TestGappedNewSnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G
// Snapshot: G
//
// SetHead(0)
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10
//
// Expected head header : C10
// Expected head fast block: C10
// Expected head block : C10
// Expected snapshot disk : C10
testSnapshot(t, &snapshotTest{
legacy: false,
crash: false,
gapped: 2,
setHead: 0,
chainBlocks: 8,
snapshotBlock: 0,
commitBlock: 0,
expCanonicalBlocks: 10,
expHeadHeader: 10,
expHeadFastBlock: 10,
expHeadBlock: 10,
expSnapshotBottom: 10, // Rebuilt snapshot from the latest HEAD
})
}
// Tests a Geth was running with leagcy snapshot enabled. Then restarts
// without enabling snapshot and after that re-enable the snapshot again.
// In this case the snapshot should be rebuilt with latest chain head.
func TestGappedLegacySnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G
// Snapshot: G
//
// SetHead(0)
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4->C5->C6->C7->C8->C9->C10
//
// Expected head header : C10
// Expected head fast block: C10
// Expected head block : C10
// Expected snapshot disk : C10
testSnapshot(t, &snapshotTest{
legacy: true,
crash: false,
gapped: 2,
setHead: 0,
chainBlocks: 8,
snapshotBlock: 0,
commitBlock: 0,
expCanonicalBlocks: 10,
expHeadHeader: 10,
expHeadFastBlock: 10,
expHeadBlock: 10,
expSnapshotBottom: 10, // Rebuilt snapshot from the latest HEAD
})
}
// Tests the Geth was running with snapshot enabled and resetHead is applied.
// In this case the head is rewound to the target(with state available). After
// that the chain is restarted and the original disk layer is kept.
func TestSetHeadWithNewSnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G
// Snapshot: G
//
// SetHead(4)
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4
//
// Expected head header : C4
// Expected head fast block: C4
// Expected head block : C4
// Expected snapshot disk : G
testSnapshot(t, &snapshotTest{
legacy: false,
crash: false,
gapped: 0,
setHead: 4,
chainBlocks: 8,
snapshotBlock: 0,
commitBlock: 0,
expCanonicalBlocks: 4,
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
expSnapshotBottom: 0, // The initial disk layer is built from the genesis
})
}
// Tests the Geth was running with snapshot(legacy-format) enabled and resetHead
// is applied. In this case the head is rewound to the target(with state available).
// After that the chain is restarted and the original disk layer is kept.
func TestSetHeadWithLegacySnapshot(t *testing.T) {
// Chain:
// G->C1->C2->C3->C4->C5->C6->C7->C8 (HEAD)
//
// Commit: G
// Snapshot: G
//
// SetHead(4)
//
// ------------------------------
//
// Expected in leveldb:
// G->C1->C2->C3->C4
//
// Expected head header : C4
// Expected head fast block: C4
// Expected head block : C4
// Expected snapshot disk : G
testSnapshot(t, &snapshotTest{
legacy: true,
crash: false,
gapped: 0,
setHead: 4,
chainBlocks: 8,
snapshotBlock: 0,
commitBlock: 0,
expCanonicalBlocks: 4,
expHeadHeader: 4,
expHeadFastBlock: 4,
expHeadBlock: 4,
expSnapshotBottom: 0, // The initial disk layer is built from the genesis
})
}
func testSnapshot(t *testing.T, tt *snapshotTest) {
// It's hard to follow the test case, visualize the input
//log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
//fmt.Println(tt.dump())
// Create a temporary persistent database
datadir, err := ioutil.TempDir("", "")
if err != nil {
t.Fatalf("Failed to create temporary datadir: %v", err)
}
os.RemoveAll(datadir)
db, err := rawdb.NewLevelDBDatabaseWithFreezer(datadir, 0, 0, datadir, "")
if err != nil {
t.Fatalf("Failed to create persistent database: %v", err)
}
defer db.Close() // Might double close, should be fine
// Initialize a fresh chain
var (
genesis = new(Genesis).MustCommit(db)
engine = ethash.NewFullFaker()
gendb = rawdb.NewMemoryDatabase()
// Snapshot is enabled, the first snapshot is created from the Genesis.
// The snapshot memory allowance is 256MB, it means no snapshot flush
// will happen during the block insertion.
cacheConfig = defaultCacheConfig
)
chain, err := NewBlockChain(db, cacheConfig, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
if err != nil {
t.Fatalf("Failed to create chain: %v", err)
}
blocks, _ := GenerateChain(params.TestChainConfig, genesis, engine, gendb, tt.chainBlocks, func(i int, b *BlockGen) {})
// Insert the blocks with configured settings.
var breakpoints []uint64
if tt.commitBlock > tt.snapshotBlock {
breakpoints = append(breakpoints, tt.snapshotBlock, tt.commitBlock)
} else {
breakpoints = append(breakpoints, tt.commitBlock, tt.snapshotBlock)
}
var startPoint uint64
for _, point := range breakpoints {
if _, err := chain.InsertChain(blocks[startPoint:point]); err != nil {
t.Fatalf("Failed to import canonical chain start: %v", err)
}
startPoint = point
if tt.commitBlock > 0 && tt.commitBlock == point {
chain.stateCache.TrieDB().Commit(blocks[point-1].Root(), true, nil)
}
if tt.snapshotBlock > 0 && tt.snapshotBlock == point {
if tt.legacy {
// Here we commit the snapshot disk root to simulate
// committing the legacy snapshot.
rawdb.WriteSnapshotRoot(db, blocks[point-1].Root())
} else {
chain.snaps.Cap(blocks[point-1].Root(), 0)
diskRoot, blockRoot := chain.snaps.DiskRoot(), blocks[point-1].Root()
if !bytes.Equal(diskRoot.Bytes(), blockRoot.Bytes()) {
t.Fatalf("Failed to flush disk layer change, want %x, got %x", blockRoot, diskRoot)
}
}
}
}
if _, err := chain.InsertChain(blocks[startPoint:]); err != nil {
t.Fatalf("Failed to import canonical chain tail: %v", err)
}
// Set the flag for writing legacy journal if ncessary
if tt.legacy {
chain.writeLegacyJournal = true
}
// Pull the plug on the database, simulating a hard crash
if tt.crash {
db.Close()
// Start a new blockchain back up and see where the repair leads us
db, err = rawdb.NewLevelDBDatabaseWithFreezer(datadir, 0, 0, datadir, "")
if err != nil {
t.Fatalf("Failed to reopen persistent database: %v", err)
}
defer db.Close()
// The interesting thing is: instead of start the blockchain after
// the crash, we do restart twice here: one after the crash and one
// after the normal stop. It's used to ensure the broken snapshot
// can be detected all the time.
chain, err = NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
if err != nil {
t.Fatalf("Failed to recreate chain: %v", err)
}
chain.Stop()
chain, err = NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
if err != nil {
t.Fatalf("Failed to recreate chain: %v", err)
}
defer chain.Stop()
} else if tt.gapped > 0 {
// Insert blocks without enabling snapshot if gapping is required.
chain.Stop()
gappedBlocks, _ := GenerateChain(params.TestChainConfig, blocks[len(blocks)-1], engine, gendb, tt.gapped, func(i int, b *BlockGen) {})
// Insert a few more blocks without enabling snapshot
var cacheConfig = &CacheConfig{
TrieCleanLimit: 256,
TrieDirtyLimit: 256,
TrieTimeLimit: 5 * time.Minute,
SnapshotLimit: 0,
}
chain, err = NewBlockChain(db, cacheConfig, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
if err != nil {
t.Fatalf("Failed to recreate chain: %v", err)
}
chain.InsertChain(gappedBlocks)
chain.Stop()
chain, err = NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
if err != nil {
t.Fatalf("Failed to recreate chain: %v", err)
}
defer chain.Stop()
} else if tt.setHead != 0 {
// Rewind the chain if setHead operation is required.
chain.SetHead(tt.setHead)
chain.Stop()
chain, err = NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
if err != nil {
t.Fatalf("Failed to recreate chain: %v", err)
}
defer chain.Stop()
} else {
chain.Stop()
// Restart the chain normally
chain, err = NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
if err != nil {
t.Fatalf("Failed to recreate chain: %v", err)
}
defer chain.Stop()
}
// Iterate over all the remaining blocks and ensure there are no gaps
verifyNoGaps(t, chain, true, blocks)
verifyCutoff(t, chain, true, blocks, tt.expCanonicalBlocks)
if head := chain.CurrentHeader(); head.Number.Uint64() != tt.expHeadHeader {
t.Errorf("Head header mismatch: have %d, want %d", head.Number, tt.expHeadHeader)
}
if head := chain.CurrentFastBlock(); head.NumberU64() != tt.expHeadFastBlock {
t.Errorf("Head fast block mismatch: have %d, want %d", head.NumberU64(), tt.expHeadFastBlock)
}
if head := chain.CurrentBlock(); head.NumberU64() != tt.expHeadBlock {
t.Errorf("Head block mismatch: have %d, want %d", head.NumberU64(), tt.expHeadBlock)
}
// Check the disk layer, ensure they are matched
block := chain.GetBlockByNumber(tt.expSnapshotBottom)
if block == nil {
t.Errorf("The correspnding block[%d] of snapshot disk layer is missing", tt.expSnapshotBottom)
} else if !bytes.Equal(chain.snaps.DiskRoot().Bytes(), block.Root().Bytes()) {
t.Errorf("The snapshot disk layer root is incorrect, want %x, get %x", block.Root(), chain.snaps.DiskRoot())
}
}

57
core/rawdb/accessors_snapshot.go
View File

@ -17,6 +17,8 @@
package rawdb
import (
"encoding/binary"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/log"
@ -118,3 +120,58 @@ func DeleteSnapshotJournal(db ethdb.KeyValueWriter) {
log.Crit("Failed to remove snapshot journal", "err", err)
}
}
// ReadSnapshotGenerator retrieves the serialized snapshot generator saved at
// the last shutdown.
func ReadSnapshotGenerator(db ethdb.KeyValueReader) []byte {
data, _ := db.Get(snapshotGeneratorKey)
return data
}
// WriteSnapshotGenerator stores the serialized snapshot generator to save at
// shutdown.
func WriteSnapshotGenerator(db ethdb.KeyValueWriter, generator []byte) {
if err := db.Put(snapshotGeneratorKey, generator); err != nil {
log.Crit("Failed to store snapshot generator", "err", err)
}
}
// DeleteSnapshotGenerator deletes the serialized snapshot generator saved at
// the last shutdown
func DeleteSnapshotGenerator(db ethdb.KeyValueWriter) {
if err := db.Delete(snapshotGeneratorKey); err != nil {
log.Crit("Failed to remove snapshot generator", "err", err)
}
}
// ReadSnapshotRecoveryNumber retrieves the block number of the last persisted
// snapshot layer.
func ReadSnapshotRecoveryNumber(db ethdb.KeyValueReader) *uint64 {
data, _ := db.Get(snapshotRecoveryKey)
if len(data) == 0 {
return nil
}
if len(data) != 8 {
return nil
}
number := binary.BigEndian.Uint64(data)
return &number
}
// WriteSnapshotRecoveryNumber stores the block number of the last persisted
// snapshot layer.
func WriteSnapshotRecoveryNumber(db ethdb.KeyValueWriter, number uint64) {
var buf [8]byte
binary.BigEndian.PutUint64(buf[:], number)
if err := db.Put(snapshotRecoveryKey, buf[:]); err != nil {
log.Crit("Failed to store snapshot recovery number", "err", err)
}
}
// DeleteSnapshotRecoveryNumber deletes the block number of the last persisted
// snapshot layer.
func DeleteSnapshotRecoveryNumber(db ethdb.KeyValueWriter) {
if err := db.Delete(snapshotRecoveryKey); err != nil {
log.Crit("Failed to remove snapshot recovery number", "err", err)
}
}

6
core/rawdb/schema.go
View File

@ -51,6 +51,12 @@ var (
// snapshotJournalKey tracks the in-memory diff layers across restarts.
snapshotJournalKey = []byte("SnapshotJournal")
// snapshotGeneratorKey tracks the snapshot generation marker across restarts.
snapshotGeneratorKey = []byte("SnapshotGenerator")
// snapshotRecoveryKey tracks the snapshot recovery marker across restarts.
snapshotRecoveryKey = []byte("SnapshotRecovery")
// txIndexTailKey tracks the oldest block whose transactions have been indexed.
txIndexTailKey = []byte("TransactionIndexTail")

76
core/state/snapshot/disklayer_test.go
View File

@ -28,6 +28,7 @@ import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/ethdb/leveldb"
"github.com/ethereum/go-ethereum/ethdb/memorydb"
"github.com/ethereum/go-ethereum/rlp"
)
// reverse reverses the contents of a byte slice. It's used to update random accs
@ -429,6 +430,81 @@ func TestDiskPartialMerge(t *testing.T) {
}
}
// Tests that when the bottom-most diff layer is merged into the disk
// layer whether the corresponding generator is persisted correctly.
func TestDiskGeneratorPersistence(t *testing.T) {
var (
accOne = randomHash()
accTwo = randomHash()
accOneSlotOne = randomHash()
accOneSlotTwo = randomHash()
accThree = randomHash()
accThreeSlot = randomHash()
baseRoot = randomHash()
diffRoot = randomHash()
diffTwoRoot = randomHash()
genMarker = append(randomHash().Bytes(), randomHash().Bytes()...)
)
// Testing scenario 1, the disk layer is still under the construction.
db := rawdb.NewMemoryDatabase()
rawdb.WriteAccountSnapshot(db, accOne, accOne[:])
rawdb.WriteStorageSnapshot(db, accOne, accOneSlotOne, accOneSlotOne[:])
rawdb.WriteStorageSnapshot(db, accOne, accOneSlotTwo, accOneSlotTwo[:])
rawdb.WriteSnapshotRoot(db, baseRoot)
// Create a disk layer based on all above updates
snaps := &Tree{
layers: map[common.Hash]snapshot{
baseRoot: &diskLayer{
diskdb: db,
cache: fastcache.New(500 * 1024),
root: baseRoot,
genMarker: genMarker,
},
},
}
// Modify or delete some accounts, flatten everything onto disk
if err := snaps.Update(diffRoot, baseRoot, nil, map[common.Hash][]byte{
accTwo: accTwo[:],
}, nil); err != nil {
t.Fatalf("failed to update snapshot tree: %v", err)
}
if err := snaps.Cap(diffRoot, 0); err != nil {
t.Fatalf("failed to flatten snapshot tree: %v", err)
}
blob := rawdb.ReadSnapshotGenerator(db)
var generator journalGenerator
if err := rlp.DecodeBytes(blob, &generator); err != nil {
t.Fatalf("Failed to decode snapshot generator %v", err)
}
if !bytes.Equal(generator.Marker, genMarker) {
t.Fatalf("Generator marker is not matched")
}
// Test senario 2, the disk layer is fully generated
// Modify or delete some accounts, flatten everything onto disk
if err := snaps.Update(diffTwoRoot, diffRoot, nil, map[common.Hash][]byte{
accThree: accThree.Bytes(),
}, map[common.Hash]map[common.Hash][]byte{
accThree: {accThreeSlot: accThreeSlot.Bytes()},
}); err != nil {
t.Fatalf("failed to update snapshot tree: %v", err)
}
diskLayer := snaps.layers[snaps.diskRoot()].(*diskLayer)
diskLayer.genMarker = nil // Construction finished
if err := snaps.Cap(diffTwoRoot, 0); err != nil {
t.Fatalf("failed to flatten snapshot tree: %v", err)
}
blob = rawdb.ReadSnapshotGenerator(db)
if err := rlp.DecodeBytes(blob, &generator); err != nil {
t.Fatalf("Failed to decode snapshot generator %v", err)
}
if len(generator.Marker) != 0 {
t.Fatalf("Failed to update snapshot generator")
}
}
// Tests that merging something into a disk layer persists it into the database
// and invalidates any previously written and cached values, discarding anything
// after the in-progress generation marker.

1
core/state/snapshot/generate.go
View File

@ -112,6 +112,7 @@ func generateSnapshot(diskdb ethdb.KeyValueStore, triedb *trie.Database, cache i
genAbort: make(chan chan *generatorStats),
}
go base.generate(&generatorStats{wiping: wiper, start: time.Now()})
log.Debug("Start snapshot generation", "root", root)
return base
}

224
core/state/snapshot/journal.go
View File

@ -33,6 +33,8 @@ import (
"github.com/ethereum/go-ethereum/trie"
)
const journalVersion uint64 = 0
// journalGenerator is a disk layer entry containing the generator progress marker.
type journalGenerator struct {
Wiping bool // Whether the database was in progress of being wiped
@ -61,8 +63,87 @@ type journalStorage struct {
Vals [][]byte
}
// loadAndParseLegacyJournal tries to parse the snapshot journal in legacy format.
func loadAndParseLegacyJournal(db ethdb.KeyValueStore, base *diskLayer) (snapshot, journalGenerator, error) {
// Retrieve the journal, for legacy journal it must exist since even for
// 0 layer it stores whether we've already generated the snapshot or are
// in progress only.
journal := rawdb.ReadSnapshotJournal(db)
if len(journal) == 0 {
return nil, journalGenerator{}, errors.New("missing or corrupted snapshot journal")
}
r := rlp.NewStream(bytes.NewReader(journal), 0)
// Read the snapshot generation progress for the disk layer
var generator journalGenerator
if err := r.Decode(&generator); err != nil {
return nil, journalGenerator{}, fmt.Errorf("failed to load snapshot progress marker: %v", err)
}
// Load all the snapshot diffs from the journal
snapshot, err := loadDiffLayer(base, r)
if err != nil {
return nil, generator, err
}
return snapshot, generator, nil
}
// loadAndParseJournal tries to parse the snapshot journal in latest format.
func loadAndParseJournal(db ethdb.KeyValueStore, base *diskLayer) (snapshot, journalGenerator, error) {
// Retrieve the disk layer generator. It must exist, no matter the
// snapshot is fully generated or not. Otherwise the entire disk
// layer is invalid.
generatorBlob := rawdb.ReadSnapshotGenerator(db)
if len(generatorBlob) == 0 {
return nil, journalGenerator{}, errors.New("missing snapshot generator")
}
var generator journalGenerator
if err := rlp.DecodeBytes(generatorBlob, &generator); err != nil {
return nil, journalGenerator{}, fmt.Errorf("failed to decode snapshot generator: %v", err)
}
// Retrieve the diff layer journal. It's possible that the journal is
// not existent, e.g. the disk layer is generating while that the Geth
// crashes without persisting the diff journal.
// So if there is no journal, or the journal is not matched with disk
// layer, we just discard all diffs and try to recover them later.
journal := rawdb.ReadSnapshotJournal(db)
if len(journal) == 0 {
log.Warn("Loaded snapshot journal", "diskroot", base.root, "diffs", "missing")
return base, generator, nil
}
r := rlp.NewStream(bytes.NewReader(journal), 0)
// Firstly, resolve the first element as the journal version
version, err := r.Uint()
if err != nil {
return nil, journalGenerator{}, err
}
if version != journalVersion {
return nil, journalGenerator{}, fmt.Errorf("journal version mismatch, want %d got %v", journalVersion, version)
}
// Secondly, resolve the disk layer root, ensure it's continuous
// with disk layer.
var root common.Hash
if err := r.Decode(&root); err != nil {
return nil, journalGenerator{}, errors.New("missing disk layer root")
}
// The diff journal is not matched with disk, discard them.
// It can happen that Geth crashes without persisting the latest
// diff journal.
if !bytes.Equal(root.Bytes(), base.root.Bytes()) {
log.Warn("Loaded snapshot journal", "diskroot", base.root, "diffs", "unmatched")
return base, generator, nil
}
// Load all the snapshot diffs from the journal
snapshot, err := loadDiffLayer(base, r)
if err != nil {
return nil, journalGenerator{}, err
}
log.Debug("Loaded snapshot journal", "diskroot", base.root, "diffhead", snapshot.Root())
return snapshot, generator, nil
}
// loadSnapshot loads a pre-existing state snapshot backed by a key-value store.
func loadSnapshot(diskdb ethdb.KeyValueStore, triedb *trie.Database, cache int, root common.Hash) (snapshot, error) {
func loadSnapshot(diskdb ethdb.KeyValueStore, triedb *trie.Database, cache int, root common.Hash, recovery bool) (snapshot, error) {
// Retrieve the block number and hash of the snapshot, failing if no snapshot
// is present in the database (or crashed mid-update).
baseRoot := rawdb.ReadSnapshotRoot(diskdb)
@ -75,29 +156,37 @@ func loadSnapshot(diskdb ethdb.KeyValueStore, triedb *trie.Database, cache int,
cache: fastcache.New(cache * 1024 * 1024),
root: baseRoot,
}
// Retrieve the journal, it must exist since even for 0 layer it stores whether
// we've already generated the snapshot or are in progress only
journal := rawdb.ReadSnapshotJournal(diskdb)
if len(journal) == 0 {
return nil, errors.New("missing or corrupted snapshot journal")
var legacy bool
snapshot, generator, err := loadAndParseJournal(diskdb, base)
if err != nil {
log.Debug("Failed to load new-format journal", "error", err)
snapshot, generator, err = loadAndParseLegacyJournal(diskdb, base)
legacy = true
}
r := rlp.NewStream(bytes.NewReader(journal), 0)
// Read the snapshot generation progress for the disk layer
var generator journalGenerator
if err := r.Decode(&generator); err != nil {
return nil, fmt.Errorf("failed to load snapshot progress marker: %v", err)
}
// Load all the snapshot diffs from the journal
snapshot, err := loadDiffLayer(base, r)
if err != nil {
return nil, err
}
// Entire snapshot journal loaded, sanity check the head and return
// Journal doesn't exist, don't worry if it's not supposed to
// Entire snapshot journal loaded, sanity check the head. If the loaded
// snapshot is not matched with current state root, print a warning log
// or discard the entire snapshot it's legacy snapshot.
//
// Possible scenario: Geth was crashed without persisting journal and then
// restart, the head is rewound to the point with available state(trie)
// which is below the snapshot. In this case the snapshot can be recovered
// by re-executing blocks but right now it's unavailable.
if head := snapshot.Root(); head != root {
// If it's legacy snapshot, or it's new-format snapshot but
// it's not in recovery mode, returns the error here for
// rebuilding the entire snapshot forcibly.
if legacy || !recovery {
return nil, fmt.Errorf("head doesn't match snapshot: have %#x, want %#x", head, root)
}
// It's in snapshot recovery, the assumption is held that
// the disk layer is always higher than chain head. It can
// be eventually recovered when the chain head beyonds the
// disk layer.
log.Warn("Snapshot is not continuous with chain", "snaproot", head, "chainroot", root)
}
// Everything loaded correctly, resume any suspended operations
if !generator.Done {
// If the generator was still wiping, restart one from scratch (fine for
@ -203,7 +292,9 @@ func (dl *diskLayer) Journal(buffer *bytes.Buffer) (common.Hash, error) {
if dl.stale {
return common.Hash{}, ErrSnapshotStale
}
// Write out the generator marker
// Write out the generator marker. Note it's a standalone disk layer generator
// which is not mixed with journal. It's ok if the generator is persisted while
// journal is not.
entry := journalGenerator{
Done: dl.genMarker == nil,
Marker: dl.genMarker,
@ -214,9 +305,12 @@ func (dl *diskLayer) Journal(buffer *bytes.Buffer) (common.Hash, error) {
entry.Slots = stats.slots
entry.Storage = uint64(stats.storage)
}
if err := rlp.Encode(buffer, entry); err != nil {
blob, err := rlp.EncodeToBytes(entry)
if err != nil {
return common.Hash{}, err
}
log.Debug("Journalled disk layer", "root", dl.root, "complete", dl.genMarker == nil)
rawdb.WriteSnapshotGenerator(dl.diskdb, blob)
return dl.root, nil
}
@ -266,5 +360,97 @@ func (dl *diffLayer) Journal(buffer *bytes.Buffer) (common.Hash, error) {
if err := rlp.Encode(buffer, storage); err != nil {
return common.Hash{}, err
}
log.Debug("Journalled diff layer", "root", dl.root, "parent", dl.parent.Root())
return base, nil
}
// LegacyJournal writes the persistent layer generator stats into a buffer
// to be stored in the database as the snapshot journal.
//
// Note it's the legacy version which is only used in testing right now.
func (dl *diskLayer) LegacyJournal(buffer *bytes.Buffer) (common.Hash, error) {
// If the snapshot is currently being generated, abort it
var stats *generatorStats
if dl.genAbort != nil {
abort := make(chan *generatorStats)
dl.genAbort <- abort
if stats = <-abort; stats != nil {
stats.Log("Journalling in-progress snapshot", dl.root, dl.genMarker)
}
}
// Ensure the layer didn't get stale
dl.lock.RLock()
defer dl.lock.RUnlock()
if dl.stale {
return common.Hash{}, ErrSnapshotStale
}
// Write out the generator marker
entry := journalGenerator{
Done: dl.genMarker == nil,
Marker: dl.genMarker,
}
if stats != nil {
entry.Wiping = (stats.wiping != nil)
entry.Accounts = stats.accounts
entry.Slots = stats.slots
entry.Storage = uint64(stats.storage)
}
if err := rlp.Encode(buffer, entry); err != nil {
return common.Hash{}, err
}
return dl.root, nil
}
// Journal writes the memory layer contents into a buffer to be stored in the
// database as the snapshot journal.
//
// Note it's the legacy version which is only used in testing right now.
func (dl *diffLayer) LegacyJournal(buffer *bytes.Buffer) (common.Hash, error) {
// Journal the parent first
base, err := dl.parent.LegacyJournal(buffer)
if err != nil {
return common.Hash{}, err
}
// Ensure the layer didn't get stale
dl.lock.RLock()
defer dl.lock.RUnlock()
if dl.Stale() {
return common.Hash{}, ErrSnapshotStale
}
// Everything below was journalled, persist this layer too
if err := rlp.Encode(buffer, dl.root); err != nil {
return common.Hash{}, err
}
destructs := make([]journalDestruct, 0, len(dl.destructSet))
for hash := range dl.destructSet {
destructs = append(destructs, journalDestruct{Hash: hash})
}
if err := rlp.Encode(buffer, destructs); err != nil {
return common.Hash{}, err
}
accounts := make([]journalAccount, 0, len(dl.accountData))
for hash, blob := range dl.accountData {
accounts = append(accounts, journalAccount{Hash: hash, Blob: blob})
}
if err := rlp.Encode(buffer, accounts); err != nil {
return common.Hash{}, err
}
storage := make([]journalStorage, 0, len(dl.storageData))
for hash, slots := range dl.storageData {
keys := make([]common.Hash, 0, len(slots))
vals := make([][]byte, 0, len(slots))
for key, val := range slots {
keys = append(keys, key)
vals = append(vals, val)
}
storage = append(storage, journalStorage{Hash: hash, Keys: keys, Vals: vals})
}
if err := rlp.Encode(buffer, storage); err != nil {
return common.Hash{}, err
}
log.Debug("Journalled diff layer", "root", dl.root, "parent", dl.parent.Root())
return base, nil
}

115
core/state/snapshot/snapshot.go
View File

@ -29,6 +29,7 @@ import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/trie"
)
@ -136,6 +137,10 @@ type snapshot interface {
// flattening everything down (bad for reorgs).
Journal(buffer *bytes.Buffer) (common.Hash, error)
// LegacyJournal is basically identical to Journal. it's the legacy version for
// flushing legacy journal. Now the only purpose of this function is for testing.
LegacyJournal(buffer *bytes.Buffer) (common.Hash, error)
// Stale return whether this layer has become stale (was flattened across) or
// if it's still live.
Stale() bool
@ -168,10 +173,12 @@ type Tree struct {
// store (with a number of memory layers from a journal), ensuring that the head
// of the snapshot matches the expected one.
//
// If the snapshot is missing or inconsistent, the entirety is deleted and will
// be reconstructed from scratch based on the tries in the key-value store, on a
// background thread.
func New(diskdb ethdb.KeyValueStore, triedb *trie.Database, cache int, root common.Hash, async bool) *Tree {
// If the snapshot is missing or the disk layer is broken, the entire is deleted
// and will be reconstructed from scratch based on the tries in the key-value
// store, on a background thread. If the memory layers from the journal is not
// continuous with disk layer or the journal is missing, all diffs will be discarded
// iff it's in "recovery" mode, otherwise rebuild is mandatory.
func New(diskdb ethdb.KeyValueStore, triedb *trie.Database, cache int, root common.Hash, async bool, recovery bool) *Tree {
// Create a new, empty snapshot tree
snap := &Tree{
diskdb: diskdb,
@ -183,7 +190,7 @@ func New(diskdb ethdb.KeyValueStore, triedb *trie.Database, cache int, root comm
defer snap.waitBuild()
}
// Attempt to load a previously persisted snapshot and rebuild one if failed
head, err := loadSnapshot(diskdb, triedb, cache, root)
head, err := loadSnapshot(diskdb, triedb, cache, root, recovery)
if err != nil {
log.Warn("Failed to load snapshot, regenerating", "err", err)
snap.Rebuild(root)
@ -415,6 +422,9 @@ func (t *Tree) cap(diff *diffLayer, layers int) *diskLayer {
// diffToDisk merges a bottom-most diff into the persistent disk layer underneath
// it. The method will panic if called onto a non-bottom-most diff layer.
//
// The disk layer persistence should be operated in an atomic way. All updates should
// be discarded if the whole transition if not finished.
func diffToDisk(bottom *diffLayer) *diskLayer {
var (
base = bottom.parent.(*diskLayer)
@ -427,8 +437,7 @@ func diffToDisk(bottom *diffLayer) *diskLayer {
base.genAbort <- abort
stats = <-abort
}
// Start by temporarily deleting the current snapshot block marker. This
// ensures that in the case of a crash, the entire snapshot is invalidated.
// Put the deletion in the batch writer, flush all updates in the final step.
rawdb.DeleteSnapshotRoot(batch)
// Mark the original base as stale as we're going to create a new wrapper
@ -471,12 +480,6 @@ func diffToDisk(bottom *diffLayer) *diskLayer {
base.cache.Set(hash[:], data)
snapshotCleanAccountWriteMeter.Mark(int64(len(data)))
if batch.ValueSize() > ethdb.IdealBatchSize {
if err := batch.Write(); err != nil {
log.Crit("Failed to write account snapshot", "err", err)
}
batch.Reset()
}
snapshotFlushAccountItemMeter.Mark(1)
snapshotFlushAccountSizeMeter.Mark(int64(len(data)))
}
@ -505,18 +508,33 @@ func diffToDisk(bottom *diffLayer) *diskLayer {
snapshotFlushStorageItemMeter.Mark(1)
snapshotFlushStorageSizeMeter.Mark(int64(len(data)))
}
if batch.ValueSize() > ethdb.IdealBatchSize {
if err := batch.Write(); err != nil {
log.Crit("Failed to write storage snapshot", "err", err)
}
batch.Reset()
}
}
// Update the snapshot block marker and write any remainder data
rawdb.WriteSnapshotRoot(batch, bottom.root)
// Write out the generator marker
entry := journalGenerator{
Done: base.genMarker == nil,
Marker: base.genMarker,
}
if stats != nil {
entry.Wiping = (stats.wiping != nil)
entry.Accounts = stats.accounts
entry.Slots = stats.slots
entry.Storage = uint64(stats.storage)
}
blob, err := rlp.EncodeToBytes(entry)
if err != nil {
panic(fmt.Sprintf("Failed to RLP encode generator %v", err))
}
rawdb.WriteSnapshotGenerator(batch, blob)
// Flush all the updates in the single db operation. Ensure the
// disk layer transition is atomic.
if err := batch.Write(); err != nil {
log.Crit("Failed to write leftover snapshot", "err", err)
}
log.Debug("Journalled disk layer", "root", bottom.root, "complete", base.genMarker == nil)
res := &diskLayer{
root: bottom.root,
cache: base.cache,
@ -554,7 +572,21 @@ func (t *Tree) Journal(root common.Hash) (common.Hash, error) {
t.lock.Lock()
defer t.lock.Unlock()
// Firstly write out the metadata of journal
journal := new(bytes.Buffer)
if err := rlp.Encode(journal, journalVersion); err != nil {
return common.Hash{}, err
}
diskroot := t.diskRoot()
if diskroot == (common.Hash{}) {
return common.Hash{}, errors.New("invalid disk root")
}
// Secondly write out the disk layer root, ensure the
// diff journal is continuous with disk.
if err := rlp.Encode(journal, diskroot); err != nil {
return common.Hash{}, err
}
// Finally write out the journal of each layer in reverse order.
base, err := snap.(snapshot).Journal(journal)
if err != nil {
return common.Hash{}, err
@ -564,6 +596,29 @@ func (t *Tree) Journal(root common.Hash) (common.Hash, error) {
return base, nil
}
// LegacyJournal is basically identical to Journal. it's the legacy
// version for flushing legacy journal. Now the only purpose of this
// function is for testing.
func (t *Tree) LegacyJournal(root common.Hash) (common.Hash, error) {
// Retrieve the head snapshot to journal from var snap snapshot
snap := t.Snapshot(root)
if snap == nil {
return common.Hash{}, fmt.Errorf("snapshot [%#x] missing", root)
}
// Run the journaling
t.lock.Lock()
defer t.lock.Unlock()
journal := new(bytes.Buffer)
base, err := snap.(snapshot).LegacyJournal(journal)
if err != nil {
return common.Hash{}, err
}
// Store the journal into the database and return
rawdb.WriteSnapshotJournal(t.diskdb, journal.Bytes())
return base, nil
}
// Rebuild wipes all available snapshot data from the persistent database and
// discard all caches and diff layers. Afterwards, it starts a new snapshot
// generator with the given root hash.
@ -571,6 +626,10 @@ func (t *Tree) Rebuild(root common.Hash) {
t.lock.Lock()
defer t.lock.Unlock()
// Firstly delete any recovery flag in the database. Because now we are
// building a brand new snapshot.
rawdb.DeleteSnapshotRecoveryNumber(t.diskdb)
// Track whether there's a wipe currently running and keep it alive if so
var wiper chan struct{}
@ -657,6 +716,16 @@ func (t *Tree) disklayer() *diskLayer {
}
}
// diskRoot is a internal helper function to return the disk layer root.
// The lock of snapTree is assumed to be held already.
func (t *Tree) diskRoot() common.Hash {
disklayer := t.disklayer()
if disklayer == nil {
return common.Hash{}
}
return disklayer.Root()
}
// generating is an internal helper function which reports whether the snapshot
// is still under the construction.
func (t *Tree) generating() (bool, error) {
@ -671,3 +740,11 @@ func (t *Tree) generating() (bool, error) {
defer layer.lock.RUnlock()
return layer.genMarker != nil, nil
}
// diskRoot is a external helper function to return the disk layer root.
func (t *Tree) DiskRoot() common.Hash {
t.lock.Lock()
defer t.lock.Unlock()
return t.diskRoot()
}

2
tests/state_test_util.go
View File

@ -235,7 +235,7 @@ func MakePreState(db ethdb.Database, accounts core.GenesisAlloc, snapshotter boo
var snaps *snapshot.Tree
if snapshotter {
snaps = snapshot.New(db, sdb.TrieDB(), 1, root, false)
snaps = snapshot.New(db, sdb.TrieDB(), 1, root, false, false)
}
statedb, _ = state.New(root, sdb, snaps)
return snaps, statedb